I agree with Late vamp.... its not normal for a guy to chose sports over sometime with his girl... especially if he's playing sports all the time. I would talk to him and ask him what's up? Maybe he's not ready for a commitment right now, but doesnt want to admit it. Which is why he's put all his focus into activity. I've noticed that guys tend to think that if you ignore an issue... it doesnt exist. Or he can be the type of guy who when he's got a passion for something... he goes for it with all his heart. And he doesnt realize what it's doing to your relationship.
I would just ask him what's up... and maybe you can come to a solution where some nights you set aside to be together (without distractions) and other nights he can do is own thing. If he cares about you, he'll come to a medium.
Hope everything works out!
As I bear the darkness into battle, my suffering becomes my strength.