In this exercise the circle runner is trained to prevent a defender to move out and check an incoming jump shooter.

The ball is passed to a helping player and the attack begins.
As the ball is received, the 2 CR move quickly out in front of the 2 defenders and keep them at the goal circle.
The jump shot is performed over or between the 2 defenders.

The timing when performing the screening is important and it must be set just before the defenders will move out to check the attacker.

The exercise can also be made with a single defender and CR.