Set up an attacker with the ball just inside of the sideline heading upfield. 2 defenders should be 4 meters to the side and upfield from the attacker (simulating an out of bounds ball situation). On the whistle, the attacker runs upfield while the 2 defenders approach her for a proper double. Skills: 1. Blue "M" defender should approach the attacker and block off the middle of the field. 2. Blue "D" defender should approach the attacker shutting down upfield.