By Heather Freund
Tennis is a sport usually played by one or two people. Each player uses a racket to hit a hollow rubber ball. To make a serve you have to stand behind the doubles line and hit it in the opposite single bocks you are standing by. The whole point of the game is to play the ball in a way that will not allow a good return.
Tennis Lessons - How To Serve In Tennis by TomAveryTennis.com