A coach stands 4M away from any line (sideline, midline) holding 2 balls. Two players line up on the side line. The players are both facing the coach and the coach is facing the players.
The players begin to do footwork on the line. The coach drops both balls, then blows the whistle. On the whistle, the players sprint to pick up the ground ball.
This is not a groundball fight. This is a footwork and reaction drill that is great for warming up players.