RULES The Return . The ball, having been served or returned, shall be struck so that it passes over or around the net assembly and touches the opponent's court, either directly or after touching the net assembly. The Order of Play . In singles, the server shall rst make a service, the receiver shall then make a return and thereafter server and receiver alternately shall each make a return. A Let The rally shall be a let: . if in service the ball, in passing over or around the net assembly, touches it, provided the service is otherwise correct or the ball is obstructed by the receiver. . if the service is delivered when the receiving player is not ready, provided that neither the receiver attempts to strike the ball . if failure to make a service or a return or otherwise to comply with the Laws is due to a disturbance outside the control of the player