Mark Anthony Selby is an English professional snooker player. Ranked world number one on multiple occasions, he has won a total of 22 ranking titles, placing him eighth on the all-time list of ranking tournament winners. He is a four-time World Snooker Champion, and has won the Masters three times and the UK Championship twice for a total of nine Triple Crown titles, putting him on a par with John Higgins, and behind only Ronnie O’Sullivan (23), Stephen Hendry (18) and Steve Davis (15).

Snooker is a cue sport played on a rectangular billiards table covered with a green cloth called baize, with six pockets, one at each corner and one in the middle of each long side. First played by British Army officers stationed in India in the second half of the 19th century, the game is played with twenty-two balls, comprising a white cue ball, fifteen red balls, and six other balls—a yellow, green, brown, blue, pink, and black—collectively called the colours. Using a cue stick, the individual players or teams take turns to strike the cue ball to pot other balls in a predefined sequence, accumulating points for each successful pot and for each time the opposing player or team commits a foul. An individual frame of snooker is won by the player who has scored the most points. A snooker match ends when a player reaches a predetermined number of frames.