text: My other point of view on your idea is that perhaps if they do care for sports so much this would be a bit of a drive for them and they would want to be on the sports team so it would be a win-win situation for both of you. You would win because you'd get to change it for what ever reason you'd like to change it; the student would win because they would be able to join the sports team and get they're grades higher as well. Of course there is no way of telling what the out come will be.