Not if he enters the draft there isn't.Of course there is, the league knows that a player has the right to an opportunity at another club if they are not contracted. Forget legislation, the AFLPA would kick up such a fuss that it wouldn't be worth it for GC - not to mention the damage to their reputation.
More to the point, Rodney Eade says he has no interest in keeping him if he really wants to go. They still think they can convince him to re-sign.