If the defensive player touches the hit ball before it hits the wall, the score still counts. The defense must learn to react quickly and catch the ball or knock it down. This drill is best done in a tournament format. Reward the winning team in some way. This is a great drill for indoor hitting.
Players get to take a lot of swings.
The competition becomes fierce. It will build a competitive fire in your timid players. It will teach players to be aggressive. He should not be allowed to throw full speed. The objective of the drill is to teach concentration and develop great control.