Christine Marie Evert, known as Chris Evert Lloyd from 1979 to 1987, is an American former world No. 1 tennis player. Widely considered among the greatest tennis players of all time, Evert won 18 major singles titles, including a record seven French Open titles and a joint-record six US Open titles. Evert was ranked world No. 1 for 260 weeks, and was the year-end world No. 1 singles player seven times. Alongside Martina Navratilova, her greatest rival, Evert dominated women's tennis for much of the 1970s and 1980s.

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.