THE OBJECT OF ALL RACKET SPORTS is to make shots the opponent can not return.Games are played by two players (singles) or four players (doubles)racket shape and size is tailored to each sport ,but all rackets are constructed of wood ,plastic,aluminum ,or high -performance materials such as fiberglass and carbon graphite .Racket strings are usually synthetic,or natural guts is still used. Tennis is played on a court divided by a low net.Opposing players serve alternate games .At le...