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Tennis is a sport usually played between two players (singles) or between two teams of two players each (doubles). Each player uses a racketthat is strung to strike a hollow rubber ball covered withfelt over a net into the opponent's court. Tennis is an Olympic sport and is played at all levels of society at all ages. The sport can be played by anyone who can hold a racket, including people inwheelchairs. The components of a tennis racquet include a handle, known as the grip, connected to a neck which joins a roughly elliptical frame that holds a matrix of tightly pulled strings. The frameof the hitting area may not be more than 29 inches in length and 12.5 inches in width

BALLS
Tennis balls are of hollow rubber with a felt coating. Traditionally white, the predominant color wasgradually changed to Optic Yellow in the latter part of the 20th century to allow for improved visibility.
Grand Slam Tounaments
Period | Tournament | Location | Surface |
January| Australian Open | Melbourne | Hard (Plexicushion) |
May–June | French Open | Paris | Clay |
June–July | Wimbledon | London | Grass |August–September | US Open | New York City | Hard (DecoTurf) |
A competent tennis player has eight basic shots in his or her repertoire: the serve, forehand, backhand, volley, half-volley,overhead, drop shot, and lob.

Tennis is played on a rectangular, flat surface, usually grass, clay, a hardcourt of concrete and/or asphalt and occasionally carpet (indoor). The court is 78feet (23.77 m)long, and 27 feet (8.23 m) wide for singles matches and 36 ft (10.97 m) for doubles matches.[31] Additional clear space around the court is required in order for players to reach overrun balls. A netis stretched across the full width of the court, parallel with the baselines, dividing it into two equal ends. The net is 3 feet 6 inches (1.07 m) high at the posts and 3 feet (91.4 cm) high in...