For a guy whose game was his legs? I think a large part of his fall off was related directly to this. It is a lot like a pitcher with a decent shoulder injury in that it takes away from what they use the most. Especially in the case of things like tendons, some of those things never really 100% recover, and when your game is speed and drive from your legs, it has to have an effect. It's why speed guys don't last as long as say power guys.