Mats Arne Olof Wilander is a Swedish former world No. 1 tennis player. From 1982 to 1988, he won seven major singles titles, and one major men's doubles title. His breakthrough came suddenly and unexpectedly when he won the 1982 French Open at the age of 17.

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.