Here is one of my favorite [tag]conditioning drills for football[/tag].   I use it as a “cool down” drill for the entire team. I like to do at the end of [tag]football practice[/tag].

STANCE & SPRINT
Every player should be able to get into a fundamental 3 point stance and be able to fire out of that stance.

We have the team line up on one sideline facing the opposite sideline.
Each [tag]football[/tag] player must get into a proper 3 point stance and hold it until the whistle blows or on a particular snap count without jumping off sides.
Upon the whistle/snap count the players sprint until the whistle is blown at which time the players drop into stance again, holding it until the snap count/whistle.
This is repeated sideline to sideline as many times as you feel necessary.

We have found this [tag]football drill[/tag] to promote focus, the fundamentals of stance, and mental toughness as this drill is done at the end of practice when most players are already feeling fatigued.