Tomáš Berdych is a Czech former professional tennis player. His most notable achievement was reaching the final of the 2010 Wimbledon Championships, completing consecutive upsets in the defeat of top seed and six-time champion Roger Federer in the quarterfinals, and of No. 3 Novak Djokovic in the semifinals. In the final, he lost to Rafael Nadal in straight sets. Berdych's biggest career title was the Paris Masters in 2005 as an unseeded player, defeating Ivan Ljubičić in the final. Berdych has reached the semifinals of all four Grand Slams. Alongside his Wimbledon performance in the same year, he reached the semifinals of the 2010 French Open, defeating fourth seed Andy Murray in straight sets in the fourth round, and dropping no sets until his loss in the semifinals to Robin Söderling. At the 2012 US Open he defeated No. 1 Roger Federer, again at the quarterfinal stage, before losing to eventual champion Murray. During the 2014 Australian Open he lost to eventual champion Stan Wawrinka in four sets during the semifinals. He is the second player to defeat Roger Federer multiple times in Grand Slam events before the semifinal stage. He has the distinction of being one of three players, the others being Jo-Wilfried Tsonga and Stan Wawrinka, to defeat all the Big Four in major events. Berdych is considered one of the best tennis players to have never won a Grand Slam title. As well as his Paris Masters win, Berdych reached the finals of the Miami Masters in 2010, Madrid Open in 2012 and Monte Carlo Masters in 2015. He first reached his career-high singles ranking of No. 4 in May 2015. He also played the longest ATP doubles match ever, with Lukáš Rosol, defeating Marco Chiudinelli and Stan Wawrinka in the first round of the 2013 Davis Cup 6–4, 5–7, 6–4, 6–7, 24–22. The match was played on 2 February 2013, lasting 7 hours, 2 minutes. It was the second-longest ATP match ever.

Tennis is a racket sport that is played either individually against a single opponent (singles) or between two teams of two players each (doubles). Each player uses a tennis racket that is strung with cord to strike a hollow rubber ball covered with felt over or around a net and into the opponent's court. The object of the game is to manoeuvre the ball in such a way that the opponent is not able to play a valid return. The player who is unable to return the ball validly will not gain a point, while the opposite player will.