tennis

Tennis is a game playedon a court with a racket and a ball.  It can be played by two (as in singles) or four (as in doubles) indoors or outdoors.  Courts are divided by a net and marked with two sets of lines, one for singles and one for doubles play. it is the game in which a ball is driven to and fro, or kept in motion by striking it with a racket or with the open hand.Each point of a tennis game begins with a serve.  The player serving the ball is the server and the one receiving the ball is the receiver.  The server tosses the ball into the air and strikes it with the racket before it touches the ground, aiming to hit the ball into the opponent's area to begin the volley.  The server usually uses an overhand motion to strike the ball from behind the base line