Use this quick drill to improve the ability to "win the sideline." For RBs they want to sprint toward the sideline to beat the defender and score! If the defender is there, make a move or cut in to avoid the defender, but DON'T STEP OUT!   Defenders, guard and block the sideline, so the RB is forced to either step out or cut in toward your other players. 2 sidelines set up for multiple reps to reduce downtime and increase engagement. Have fun with this one!!