Have 8 players at one end and 2 players as throwers, The aim of this warm up is to get the 8 players from one end to the other without being hit below the knee from the throwers, as this is a football warm up, the throwers have to take proper throw ins, and the team goalkeeper either use proper throw ins or can throw the ball as if he would if distributing the ball to defenders in a match.
Once the player is hit by the ball below the knee they then become a thrower and join the sides. The last person standing wins.
Keep this game going and keep swopping the throwers around. Once the players are getting good, stop them from stopping at each end, this increases the run rate and also they have to think quicker at each end forcing potential errors.