This balance exercise is for two young athletes and requires two hoops or designated circles. You can also use rubber donuts.

Have each young athlete stand inside a hoop next to one another to work on developing their balance skills in a competitive environment. The rules are simple: They are trying to push each other out of their hoops. To make it even more interactive, you can also add a third competitor in a third hoop.  

This skill building exercise quickly teaches them the art of lowering their center of gravity to stay on balance. Note that, for safety reasons, pushing each other is allowed but not hitting or twisting fingers. Of course, if they are football players in full uniform, have them make contact as much as they wish as long as it would be allowed on the field during a game.