Player Unavailable???

I am managing in the Norwegian Second Division(3rd tier) and was looking through the young players one of my scouts had found. He looks like he would be a decent midfielder for me and he can only get better. I look in the status bar and see that he is unavailable to play until 2013 because he is studying.

I am wondering though that since I can sign him to a contract will he be able to train with the team or what? I would think that the only things he wont do is play games.