Set up players into groups of three. One server, one receiver working on control and trapping, and one player as a passive defender. Server is 10 yards from the receiver and defender.
The server plays a ball into the receiving player. The passive defender stands close enough to touch the receiving player and tries to distract the receiving player. The passive defender should not attempt to win the ball at this point. The server should play to chest, thigh, or feed at speficied by the coach. Serves to the chest and thigh should be thrown, and trapping with the feet should be served by the feet.
After the ball is trapped and under control, play back to the server and repeat.