Tennis
Tennis is a racket sport that can be played 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 maneuver 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 will not
gain a point, while the opposite player will.
Tennis is an Olympic sport and is played at all levels of society and at all ages. The sport can
be played by anyone who can hold a racket, including wheelchair users. The modern game of
tennis originated in Birmingham, England, in the late 19th century as lawn tennis. It had
close connections both to various field (lawn) games such as croquet and bowls as well as to
the older racket sport today called real tennis. During most of the 19th century, in fact, the
term tennis referred to real tennis, not lawn tennis.
Tennis is played by millions of recreational players and is also a popular worldwide spectator
sport. The four Grand Slam tournaments (also referred to as the Majors) are especially
popular: the Australian Open played on hard courts, the French Open played on red clay
courts, Wimbledon played on grass courts, and the US Open also played on hard courts.