The service

A. The served ball may, after hitting the ground in the service court, hit the ground once again within the bounds of the court or it may hit the ground outside the court boundaries before the receiver returns it. B. The service shall be delivered in the following manner. Immediately before commencing to serve, the server shall be in a stationary position. The server shall then be allowed one push before striking the ball. C. The server shall throughout the delivery of the service not touch, with any wheel, any area other than that behind the baseline within the imaginary extension of the center mark and sideline. D. If conventional methods for the service are physically impossible for a quadriplegic player, then another individual may drop the ball for such a player.