Tennis is a racket sport that is played with a racket and ball. The aim of the game is to hit the ball up and over the net into the court. You can play it in either singles where you are on your own, or doubles where you play with a friend against 2 other people. There are different stages of tennis for different age groups. 8s and under - red ball, U9s - orange ball, U11s - green ball, U12s and over - yellow ball. Each ball varies in bounce and weight to make tennis inclusive for all ages to play!