If you have taken the time to learn the defensive line the four-point stance, moving to a three-point stance will be relatively easy. 

 

Starting in a four-point stance with your feet slightly staggered, raise one hand off the ground and raise the opposite hand to helmet height. You must have your head up and eyes scanning the offensive players in front of them while seeing the ball to know when the play begins. From this stance, the defensive lineman should be able to charge forward low and hard using short, fast, power steps and still be under control and in position to quickly react to any blocker attacking him from the right or left.