A cricket ball is a hard, solid ball used to play cricket. A cricket ball consists of cork covered by leather, manufacture is regulated by cricket law at first-class level; the manipulation of a cricket ball, through employment of its various physical properties, is a staple component of bowling and dismissing batsmen. Movement in the air, off the ground, is influenced by the condition of the ball, the efforts of the bowler and the pitch, while working on the cricket ball to obtain optimum condition is a key role of the fielding side; the cricket ball is the principal manner through which the batsman scores runs, by manipulating the ball into a position where it would be safe to take a run, or by directing the ball through or over the boundary. In day Test cricket, professional domestic games that spread over a multitude of days, the entirety of amateur cricket, the traditional red cricket ball is used. In many one day cricket matches, a white ball is used instead in order to remain visible under floodlights, since 2010, pink has been introduced to contrast with players' white clothing and for improved night visibility during day/night Test matches.
Training balls of white and pink are common, tennis balls and other similar-sized balls can be used for training or informal cricket matches. During cricket matches, the quality of the ball changes to a point where it is no longer usable, during this decline its properties alter and thus can influence the match. Altering the state of the cricket ball outside the permitted manners designated in the rules of cricket is prohibited during a match, so-called "ball tampering" has resulted in numerous controversies. Injuries and fatalities have been caused by cricket balls during matches; the hazards posed by cricket balls were a key motivator for the introduction of protective equipment. British Standard BS 5993 specifies the construction details, dimensions and performance of cricket balls. A cricket ball is made with a core of cork, layered with wound string, covered by a leather case with a raised sewn seam. In a top-quality ball suitable for the highest levels of competition, the covering is constructed of four pieces of leather shaped similar to the peel of a quartered orange, but one hemisphere is rotated by 90 degrees with respect to the other.
The "equator" of the ball is stitched with string to form the ball's prominent seam, with six rows of stitches. The remaining two joins between the leather pieces are stitched internally forming the quarter seam. Lower-quality balls with a two-piece covering are popular for practice and lower-level competition due to their lower cost; the nature of the cricket ball varies with its manufacturer. White Kookaburra balls are used in one-day and Twenty20 international matches, while red Kookaburras are used in test matches played in most of the ten test-playing nations, except for the West Indies and England, who use Dukes, India, who use SG balls. Cricket balls are traditionally red, red balls are used in Test cricket and First-class cricket. White balls were introduced when one-day matches began being played at night under floodlights, as they are more visible at night; the white balls have been found to behave differently to the red balls, most notably that they swing a lot more during the first half of an innings than the red ball, that they deteriorate more quickly.
Manufacturers claim that white and red balls are manufactured using the same methods and materials, other than the dying treatment of the leather. Another problem associated with white cricket balls used in One Day Internationals is that they become dirty or dull in colour, which makes it more difficult for batsmen to sight the ball after 30-40 overs of use. Since October 2012, this has been managed by the use of two new white balls in each innings, with a different ball used from each bowling end. Between October 2007 and October 2012, the issue had been managed using one new ball from the start of the innings swapping it at the end of the 34th over with a "reconditioned ball", neither new nor too dirty to see. Before October 2007, except during 1992 and 1996 World Cups, only one ball was used during an innings of an ODI and it was the umpires discretion to change the ball if it was difficult to see. Pink balls were developed in the 2000s to enable first-class matches played at night; the red ball is unsuited to night tests due to poor visibility, the white ball is unsuited to first-class cricket because its rapid deterioration makes it unable to be used for eighty overs as specified in the rules, so the pink ball was designed to provide a satisfactory compromise on both issues.
It is still considered more difficult to see than a white ball. It has performed well enough in testing and first-class cricket to be approved for use in international cricket. A pink ball was used for the first time in an international match in July 2009 when the England Woman's team defeated Australia in a one-day match at Wormsley, a pink ball was used in a day-night Test match for the first time in November 2015. Other colours were experimented with, such as yellow and orange, for improved night visibility, but pink proved to be the preferred option; as of 2014, the ball used in Test match cricket in England has a recommended retail price of 100 pounds sterling. In test match cricket this ball is used for a minimum of 80 overs (theo
Swing bowling is a technique used for bowling in the sport of cricket. Practitioners are known as swing bowlers. Swing bowling is classed as a subtype of fast bowling; the essence of swing bowling is to get the cricket ball to deviate sideways as it moves through the air towards or away from the batsman. To do this, the bowler makes use of six factors: The raised seam of the cricket ball The angle of the seam to the direction of travel The wear and tear on the ball The polishing liquid used on the ball The speed of the delivery The bowler's actionThe asymmetry of the ball is encouraged by the constant polishing of one side of the ball by members of the fielding team, while allowing the opposite side to deteriorate through wear and tear. With time, this produces a marked difference in the aerodynamic properties of the two sides. Both turbulent and laminar airflow contribute to swing. Air in laminar flow separates from the surface of the ball earlier than air in turbulent flow, so that the separation point moves toward the front of the ball on the laminar side.
On the turbulent flow side it remains towards the back, inducing a greater lift force on the turbulent airflow side of the ball. The calculated net lift force is not enough to account. Additional force is provided by the pressure-gradient force. To induce the pressure-gradient force the bowler must create regions of high and low static pressure on opposing sides of the ball; the ball is "sucked" from the region of high static pressure towards the region of low static pressure. The Magnus effect uses the same force but by manipulating spin across the direction of motion. A layer of fluid, in this case air, will have a greater velocity when moving over another layer of fluid than it would have had if it had been moving over a solid, in this case the surface of the ball; the greater the velocity of the fluid, the lower its static pressure. When the ball is new the seam is used to create a layer of turbulent air on one side of the ball, by angling it to one side and spinning the ball along the seam.
This changes the separation points of the air with the ball. The next layer of air will have a greater velocity over the side with the turbulent air due to the greater air coverage and as there is a difference in air velocity, the static pressure of both sides of the ball are different and the ball is both'lifted' and'sucked' towards the turbulent airflow side of the ball; when the ball is older and there is an asymmetry in roughness the seam no longer causes the pressure difference, can reduce the swing of the ball. Air turbulence is no longer used to create separation point differences and therefore the lift and pressure differences. On the rough side of the ball there are pits in the ball's surface; these irregularities act in the same manner as the dimples of a golf ball: they trap the air, creating a layer of trapped air next to the rough side of the ball, which moves with the surface of the ball. The smooth side does not trap a layer of air; the next layer of air outward from the ball will have a greater velocity over the rough side, due to its contact with a layer of trapped air, rather than solid ball.
This lowers the static pressure relative to the shiny side. If the scratches and tears cover the rough side of the ball, the separation point on the rough side will move to the back of the ball, further than that of the turbulent air, thereby creating more lift and faster air flow; this is. If the seam is used to create the turbulent air on the rough side, the tears will not fill as as they would with laminar flow, dampening the lift and pressure differences. Reverse swing occurs in the same manner as conventional swing, despite popular misconception. Over time the rough side becomes too rough and the tears become too deep – this is why golf ball dimples are never below a certain depth, so "conventional" swing weakens over time; when polishing the shiny side of the ball, numerous liquids are used, such as sweat, sunscreen, hair gel and other illegal substances like Vaseline. These liquids penetrate the porous surface of the leather ball. Over time the liquid expands and stretches the surface of the ball and creates raised bumps on the polished side, due to the non-uniform nature of the expansion.
The valleys between the bumps hold the air in the same manner as the tears on the rough side. This creates a layer of air over the shiny side, moving the separation point towards the back of the ball on the shiny side; the greater air coverage is now on the shiny side, giving rise to more lift and faster secondary airflow on that side. There is therefore lower static pressure on the shiny side, causing the ball to swing towards it, not away from it as in conventional swing; the rough side tears hold the air more than the shiny side valleys, so to maintain the air within the valleys the initial air layer must have a high velocity, why reverse swing is but not achieved by fast bowlers. Due to the less static nature of the initial air layer it takes longer for the swing to occur, why it occurs in the delivery; this is why reverse swing can occur in the same delivery. Cold and humid weather are said to enhance swing. Colder air is denser and so may affect the differential forces the ball experiences in flight.
When looking at humidity, changes between 0% and 40% humidity appear to ha
In cricket, the term wicket has several meanings. Firstly, it is one of two bails at either end of the pitch; the wicket is guarded by a batsman who, with his bat, attempts to prevent the ball from hitting the wicket. Secondly, through metonymic usage, the dismissal of a batsman is known as the taking of a wicket, thirdly, the cricket pitch itself is sometimes called the wicket; the origin of the word is from a small gate. Cricket wickets had only two stumps and one bail and looked like a gate; the third stump was introduced in 1775. The size and shape of the wicket has changed several times during the last 300 years and its dimensions and placing is now determined by Law 8 in the Laws of Cricket, thus: Law 8: The wickets; the wicket consists of three wooden stumps. The stumps are placed along the batting crease with equal distances between each stump, they are positioned. Two wooden bails are placed in shallow grooves on top of the stumps; the bails must not project more than 0.5 inches above the stumps, must, for men's cricket, be 4.31 inches long.
There are specified lengths for the barrel and spigots of the bail. There are different specifications for the bails for junior cricket; the umpires may dispense with the bails. Further details on the specifications of the wickets are contained in Appendix D to the laws. For a batsman to be dismissed by being bowled, run out, stumped or hit wicket, his wicket needs to be put down. What this means is defined by Law 29. A wicket is put down if a bail is removed from the top of the stumps, or a stump is struck out of the grounds by the ball, the striker's bat, the striker's person, a fielder. A 2010 amendment to the Laws clarified the rare circumstance where a bat breaks during the course of a shot and the detached debris breaks the wicket; the wicket is put down if a fielder pulls a stump out of the ground in the same manner. If one bail is off, removing the remaining bail or striking or pulling any of the three stumps out of the ground is sufficient to put the wicket down. A fielder may remake the wicket, if necessary, in order to put it down to have an opportunity of running out a batsman.
If however both bails are off, a fielder must remove one of the three stumps out of the ground with the ball, or pull it out of the ground with a hand or arm, provided that the ball is held in the hand or hands so used, or in the hand of the arm so used. If the umpires have agreed to dispense with bails, for example, it is too windy for the bails to remain on the stumps, the decision as to whether the wicket has been put down is one for the umpire concerned to decide. After a decision to play without bails, the wicket has been put down if the umpire concerned is satisfied that the wicket has been struck by the ball, by the striker's bat, person, or items of his clothing or equipment separated from his person as described above, or by a fielder with the hand holding the ball or with the arm of the hand holding the ball; the dismissal of a batsman is known as the taking of a wicket. The batsman is said to have lost his wicket, the batting side is said to have lost a wicket, the fielding side to have taken a wicket, the bowler is said to have taken his wicket, if the dismissal is one of the types for which the bowler receives credit.
This language is used if the dismissal did not involve the stumps and bails in any way, for example, a catch. Though note that the other four of the five most common methods of dismissal do involve the stumps and bails being put down, or prevented from being put down by the batsman; the word wicket has this meaning in the following contexts: A team's score is described in terms of the total number of runs scored and the total number of wickets lost. The number of wickets taken is a primary measure of a individual bowler's ability, a key part of a bowling analysis; the sequence of time over which two particular batsmen bat together, a partnership, is referred to as a numbered wicket when discriminating it from other partnerships in the innings. The first wicket partnership is from the start of the innings until the team loses its first wicket, i.e. one of the first two batsmen is dismissed. The second wicket partnership is from when the third batsman starts batting until the team loses its second wicket, i.e. a second batsman is dismissed.
Etc... The tenth wicket or last wicket partnership is from when the eleventh batsman starts batting until the team loses its tenth wicket, i.e. a tenth batsman is dismissed. A team can win a match by a certain number of wickets; this means that they were batting last, reached the winning target with a certain number of batsmen still not dismissed. For example, if the side scored the required number of runs to win with only three batsmen dismissed, they are said to have won by seven wickets; the word wicket is sometimes used to refer to the cricket pitch itself. According to the Laws of Cricket, this usage is incorrect, but it is in common usage and understood by cricket followers; the term sticky wicket refers to a situation in which the pitch has become damp due to rain or high humidity. This makes the path of the ball more unpredictable thus making the
In cricket, a yorker is a ball bowled which hits the cricket pitch around the batsman's feet. When a batsman assumes a normal stance, this means that the cricket ball bounces on the cricket pitch on or near the batsman's popping crease. A batsman who advances down the pitch to strike the ball may by so advancing cause the ball to pitch at or around his feet and may thus cause himself to be "yorked"; the Oxford English Dictionary gives the derivation of the term as originating in Yorkshire, a notable English cricketing county. However, other derivations have been suggested; the term may derive from the 18th and 19th century slang term "to pull Yorkshire" on a person meaning to trick or deceive them, although there is evidence to suggest that the Middle English word yuerke may have been the source. A batsman, beaten by a yorker is said to have been yorked. "Beaten" in this context does not mean that the batsman is bowled or given out lbw but can include the batsman missing the ball with the bat.
A delivery, intended to be a yorker but which does not york the batsman is known as an attempted yorker. A batsman in his normal stance will raise his bat as the bowler bowls which can make the yorker difficult to play when it arrives at the batsman's feet. A batsman may only realise late that the delivery is of yorker length and will jam his bat down to "dig out" the yorker. A yorker is a difficult delivery to bowl as a mistimed delivery can either result in a full toss or half-volley which can be played by the batsman. Bowling yorkers is a tactic used most by fast bowlers. A fast yorker is one of the most difficult types of delivery in cricket to play as the bat must be swung down right to the pitch to intercept the ball—if any gap remains between the bat and the pitch, the ball can squeeze through and go on to hit the wicket; the yorker might miss the bat but hit the pads in front of the wicket, resulting in the batsman getting out lbw. When the batsman blocks such a ball, it is referred to as "dug out".
A bowler who achieves swing when bowling yorkers can be more dangerous, as the ball will deviate sideways as it travels towards the batsman, making it harder to hit. Yorkers can be aimed directly at the batsman's feet, forcing the batsman to shift his feet while attempting to play the ball, or risk being hit. Inswinging yorkers have a reputation for being hard to defend and difficult to score runs off; such a delivery is colloquially known as a sandshoe crusher, toe crusher, cobbler's delight or nail breaker. A recent variation is the wide yorker, delivered wide of the batsman on the off side; this is useful in Twenty20 cricket as a ploy to restrict runs rather than to get the batsman out. Despite the effectiveness of yorkers, they are notoriously difficult to bowl and will be attempted only a handful of times during a sequence of several overs. Yorkers are best used to surprise a batsman who has become accustomed to hitting shorter-pitched balls and not with the bat speed necessary to defend against a yorker.
As such, a yorker is bowled to give the batsman less time to react and position his bat. The yorker is regarded as effective against weak tail-end batsmen, who lack the skill to defend a non-swinging yorker and who are sometimes less susceptible to other bowling tactics, it is particularly effective in the stages of an innings in one-day cricket, because it is the most difficult of all deliveries to score off if defended successfully. Runs will only be scored off edges or straight down the ground; the most notable bowlers in delivering yorkers are Pakistanis Waqar Younis, Wasim Akram, Shoaib Akhtar and Faran Muzaffar, Sri Lankan Lasith Malinga, Australians Brett Lee, Mitchell Starc and Mitchell Johnson, New Zealanders Trent Boult, Shane Bond and Tim Southee, South Africans Dale Steyn and Alan Donald, West Indians Patrick Patterson, Malcolm Marshall, Courtney Walsh, Curtly Ambrose and Jerome Taylor, Indians Jasprit Bumrah, Bhuvneshwar Kumar, Zaheer Khan, Englishmen Andrew Flintoff and Steven Finn.
A yorker is delivered late in the bowling action with the hand pointing vertically. The aim is both to get more pace and to deliver it so as to deceive the batsman in flight, it is recommended to deliver the ball with some inswing but an away-swinging yorker aimed at the pads can be just as effective. Because yorkers are quite difficult to bowl they require substantial practice in order to achieve consistent success. How did the term'yorker' originate - ESPNcricinfo How to bowl a yorker in cricket - wisdomtalkes How to bowl a yorker - pitchvision
Fast bowling is one of two main approaches to bowling in the sport of cricket, the other being spin bowling. Practitioners of pace bowling are known as fast bowlers, quicks, or pacemen, they can be referred to as a seam bowler or a'fast bowler who can swing it' to reflect the predominant characteristic of their deliveries. Speaking, a pure swing bowler does not need to have a high degree of pace, though dedicated medium-pace swing bowlers are seen at Test level these days; the aim of fast bowling is to deliver the ball in such a fashion as to cause the batsman to make a mistake. The bowler achieves this by making the hard cricket ball deviate from a predictable, linear trajectory at a speed that limits the time the batsman has to compensate for it. For deviation caused by the ball's stitching, the ball bounces off the pitch and deflects either away from the batsman's body, or inwards towards them. Swing bowlers on the other hand use the seam of the ball but in a different way. To'bowl swing' is to induce a curved trajectory of the cricket ball through the air.
Swing bowlers use a combination of seam orientation, body position at the point of release, asymmetric ball polishing, variations in delivery speed to affect an aerodynamic influence on the ball. The ability of a bowler to induce lateral deviation or'sideways movement' make it difficult for the batsman to address the flight of the ball accurately. Beyond this ability to create an unpredictable path of ball trajectory, the fastest bowlers can be potent by delivering a ball at such a rate that a batsman fails to react either or at all. A typical fast delivery has a speed in the range of 137–153 km/h, it is possible for a bowler to concentrate on speed when young, but as fast bowlers mature they pick up new skills and tend to rely more on swing bowling or seam bowling techniques. Most fast bowlers specialise in one of these two areas and are sometimes categorised as swing or seam bowler. However, this classification is not satisfactory because the categories are not mutually exclusive and a skilled bowler bowls a mixture of fast, swinging and cutting balls—even if he prefers one style to the others.
For simplicity, it is common to subdivide fast bowlers according to the average speed of their deliveries, as follows. There is a degree of subjectivity in the usage of these terms. For comparison, most spin bowlers in professional cricket bowl at average speeds of 70 to 90 km/h. Shoaib Akhtar, Brett Lee, Shaun Tait, Jeff Thomson and Mitchell Starc have clocked over 160 km/h and are categorised as "Ultra Fast" bowlers although bowling at speeds lower than this mark. While Steven Finn is classified as a fast-medium bowler by Cricinfo, he can bowl at around 145 km/h, with his fastest clocked at 151.9 km/h, making him the 10th fastest amongst active bowlers as of 3 January 2015 The first thing a fast bowler needs to do is to grip the ball correctly. The basic fast bowling grip to achieve maximum speed is to hold the ball with the seam upright and to place the index and middle fingers close together at the top of the seam with the thumb gripping the ball at the bottom of the seam; the image to the right shows the correct grip.
The first two fingers and the thumb should hold the ball forward of the rest of the hand, the other two fingers should be tucked into the palm. The ball is held quite loosely so. Other grips are possible, result in different balls – see swing and seam bowling below; the bowler holds their other hand over the hand gripping the ball until the latest possible moment so that the batsman cannot see what type of ball is being bowled. A fast bowler needs to take a longer run-up toward the wicket than a spinner, due to the need to generate the momentum and rhythm required to bowl a fast delivery. Fast bowlers measure their preferred run up in strides, mark the distance from the wicket, it is important for the bowler to know how long the run-up is because it must terminate behind the popping crease. A bowler who steps on or beyond this has bowled a no-ball, which affords the batsman immunity from dismissal, adds one run to the batting team's score, forces the bowler to bowl another ball in the over. At the end of the run-up the bowler brings his lead foot down on the pitch with the knee as straight as possible.
This can be dangerous due to the pressure it places on the joint. Knee injuries are not uncommon amongst fast bowlers: for example, the English pace bowler David Lawrence was sidelined for many months after splitting his kneecap in two; the pressure on the leading foot is such that some fast bowlers cut the front off their shoes to stop their toes from being injured as they are pressed against the inside of the shoe. The bowler brings the bowling arm up over their head and releases the ball at the height appropriate to where they want the ball to pitch. Again, the arm must be straight though this is a stipulation of the laws of cricket rather than an aid to speed. Bending the elbow and "chucking" the ball would make it too easy for the bowler to aim at the batsman's wicket and get them out. Fast bowlers tend to have an action that leaves them either side-on or chest-on at the end of the run up. A chest-on bowler has chest and hips aligned towards the batsman at the instant of back foot contact, while a side-on bowler has chest and hips aligned at ninety degrees to the batsman at the instant of back foot contact.
West Indian bowler Malcolm Marshall was a c
Adam Craig Gilchrist, AM, nicknamed "Gilly" or "Churchy", is an Australian cricket commentator and former international cricketer and former captain of Australia. He was an attacking left-handed batsman and record-breaking wicket-keeper, who redefined the role for the Australia national team through his aggressive batting. Regarded as the greatest wicket-keeper–batsman in the history of the game, Gilchrist held the world record for the most dismissals by a wicket-keeper in One Day International cricket until it was surpassed by Kumar Sangakkara in 2015 and the most by an Australian in Test cricket, his strike rate is amongst the highest in the history of both Test cricket. He was the first player to have hit 100 sixes in Test cricket, his 17 Test centuries are his 16 in ODIs second only to Sangakkara. He holds the unique record of scoring at least 50 runs in successive World Cup finals, his 149 off 104 balls against Sri Lanka in the 2007 World Cup final is rated one of the greatest World Cup innings of all time.
He is one of the only three players to have won three World Cup titles. Gilchrist was renowned for walking when he considered himself to be out, sometimes contrary to the decision of the umpire, he made his first-class debut in 1992, his first One-Day International appearance in 1996 in India and his Test debut in 1999. During his career, he played for Australia in over 270 One-day internationals, he was Australia's regular vice-captain in both forms of the game, captaining the team when regular captains Steve Waugh and Ricky Ponting were unavailable. He retired from international cricket in March 2008, though he continued to play domestic tournaments until 2013. Adam Gilchrist was born in 1971 at Bellingen Hospital, in Bellingen, New South Wales, the youngest of four children, he and his family lived in Dorrigo and Deniliquin where, playing for his school, Deniliquin South Public School, he won the Brian Taber Shield. At the age of 13, his parents and June, moved the family to Lismore where Gilchrist captained the Kadina High School cricket team.
Gilchrist was selected for the state under-17 team, in 1989 he was offered a scholarship by London-based Richmond Cricket Club, a scheme he now supports himself. During his year at Richmond, he played junior cricket for Old Actonians Cricket Club's under-17 team, with whom he won the Middlesex League and Cup double, he moved to Sydney and joined the Gordon Club in Sydney Grade Cricket moving to Northern Districts. Gilchrist is married to his high school sweetheart Melinda Gilchrist, a dietitian, they have three sons and a daughter, his family came under the spotlight in the months leading up to the 2007 Cricket World Cup as one impending birth threatened his presence in the squad. In 1991, Gilchrist was selected for the Australia Young Cricketers, a national youth team that toured England and played in youth ODIs and Tests. Gilchrist scored a fifty in the three Tests. Upon his return to Australia late in the year, Gilchrist was accepted into the Australian Cricket Academy. Over the next year, Gilchrist represented the ACA as they played matches against the Second XI of Australia's state teams, toured South Africa to play provincial youth teams.
Upon returning to Australia, Gilchrist scored two centuries in four matches for the state Colts and Second XI teams, was rewarded with selection to make his first-class debut for New South Wales during the 1992–93 season, although he played purely as a batsman, due to the presence of incumbent wicketkeeper Phil Emery. In his first season, the side won the Sheffield Shield, Gilchrist scoring an unbeaten 20 in the second innings to secure an easy win over Queensland in the final. Gilchrist made 274 runs at an average of 30.44 in his debut season, a score of 75 being his only effort beyond fifty. He made his debut in Mercantile Mutual limited overs competition, he struggled to keep his place in the side, playing only three first-class matches in the following season. He scored on 43 runs at 8.60. Due to a lack of opportunities in the dominant New South Wales outfit, Gilchrist joined Western Australia at the start of the 1994–95, where he had to compete with former Test player Tim Zoehrer for the wicket-keeper's berth.
Gilchrist had no guarantee of selection. However, he seized Zoehrer's place; the local fans were hostile to the move, but Gilchrist won them over. He made 55 first-class dismissals in his first season, the most by any wicketkeeper in Australian domestic cricket in 1994–95. However, he struggled with the bat, scoring 398 runs at 26.53 with seven single figure scores, although he recorded his maiden first-class century in the latter stages of the season, with 126 against South Australia. Gilchrist was rewarded with selection in the Young Australia team that toured England in 1995 and played matches against the English counties. Gilchrist starred with scoring 490 runs at 70.00 with two centuries. His second season based in Perth saw him top of the dismissals again, with 58 catches and four stumpings, but 835 runs at an impressive batting average of 50.52. The Warriors made it to the final of the Sheffield Shield, at the Adelaide Oval, where Gilchrist scored 189 not out in the
An inswinger is a type of delivery in the sport of cricket. It is bowled by swing bowlers. An inswinger is bowled by holding the cricket ball with the seam vertical and the first two fingers across the seam so that it is angled a little to the leg side. Once the ball has worn and been polished so that one side is rougher than the other, the rough side is placed on the leg side; the ball is placed on the pad of the thumb. This thumb position locks the wrist in a position inclined to the leg side. Inswing can be bowled from mid-way or chest on positions, but bowlers tend to pitch it in the good length spot or up to the batsman. It is the wrist position, crucial, not the position of hips or shoulders.. When the bowler delivers the ball, he angles the seam so that it points to the leg side. To help achieve this position the bowling arm should be near vertical. At release the wrist should remain cocked so as to help impart backspin along the orientation of the seam; the angle of the seam to the direction of motion produces an aerofoil effect as the ball moves through the air, pushing it to the leg side.
This is enhanced by differential air pressure caused by movement of air over the rough and smooth surfaces, which tends to push the ball to the leg side. The result is that the ball swings in to the batsman. Inswingers are not considered to be as difficult for a right-handed batsman to play as an outswinger; this is because the ball moves in towards his body, meaning that his body is behind the line of the ball, any miscalculated shot, hit by the edge of the bat may be intercepted by his body rather than flying to a fielder for a catch. Inswingers can, sneak between the bat and pad to hit the wicket and bowl the batsman out, or miss the bat and hit the pads for a leg before wicket. A effective delivery is the inswinging yorker, which can cause a batsman to attempt to pull his feet out of the line of the ball, leaving him vulnerable to being bowled, or out lbw if he is too slow. Another deceptive type are those pitched around the off-stump that appear to be passing the batmen by but swing in wildly to knock the stumps off.
In the final match of 1983 World Cup, Balwinder Sandhu famously clean bowled Gordon Greenidge with a huge inswinger to which the batsman had shouldered arms. These are the top five in swing bowlers in the world. Dale Steyn from South Africa is the number one swing bowler in the world, he is known to take every kind of wicket using yorkers, bouncers, in-and-out swing. His bowling pace gives him competitive advantage apart from his competition. James Anderson from England is the two swing bowler in the world, he has every trick in swing bowler's manual. His ticks include in-and-out swing, reverse swing, he is known to be the finest bowlers of all time in England’s history. Stuart Broad from England is a key bowler in England team since 2008, his height 6’5” gives him ability to pitch bouncer, ability to swing in-and-out swing ball at home ground. Tim Southee is known to be an intelligent bowler from New Zealand, his actions gives him an ability to generate swing the ball away from right hander. Bhuvneshwar Kumar from INDIA is skillful and known to be generating in-and-out swing in any conditions.
His ability to swing both ways without change in action makes. Outswinger Leg cutter Off cutter The Science of Swing How to bowl an inswinger - BBC The'Inswinger' Delivery - testcricket Inswinger Basics video - wisdomtalkies Swing bowlers in world cricket