Tennis is a racket sport that can be played individually against a single opponent or between two teams of two players each. 

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. During such serves, the ball must fall into the zone marked with a white line. Each Tennis player uses only special rackets to hit the opposing side. 

Tennis court is divided into 3 zones: clay zone (red and green), solid zone (including cement and asphalt), and grass zone. Tennis, popular all over the world, has been part of the Olympics since 1896.