The following video showcases a very fun exercise that was inspired by The Diesel Crew.  If you do not know who they are, find out, you'll be a better person for it. Their website is jam packed full of awesome training information. They have several products available to enhance your grip, get you stronger and feeling better, make you a beast, etc. This exercise is simple, effective, and efficient, you can work multiple athletes together which creates a fun challenge and instantly develops camaraderie, which is wonderful for any team sport. If you don't know why grip strength is important, then get a clue. There are several variables that changes the dynamic of this exercise. Did you ever have to help a friend move furniture around? Was he the punk who couldn't carry his weight and you were stuck doing all the real lifting? You always get stuck carrying "the heavy side" of the couch? Well, with this exercise, if you are the shorter athlete, you got "the heavy side". The exercise doesn't have to be evenly loaded either. You can change the weight between hands or sides of the bar, if the athletes are not evenly matched, to appropriately challenge the individual. You can wrap towels around the end of the bar as well for an additional challenge, which is easier than changing the weight if working multiple athletes at one time. Just have the stronger guys wrap some towels around the end of the bar, the more towels, the harder the exercise. But don't worry about towels and gimmicks until you're getting some decent weight for a good amount of time. What other ideas you have for this or any other grip exercise? Whats your favorite? Variety is a good thing.