He spent most of his rookie season on the non-football injury list because the Bengals determined he was already hurt when he got to Cincinnati.
If an arbitrator decides that was not proper at that time, McCarron could be awarded another year of service time and become an unrestricted free agent.
JOIN THE CONVERSATION: Like our Cincinnati Bengals News Now Facebook page
He has made clear he appreciates his time in Cincinnati but wants a chance to start elsewhere, something that is not coming as long as Andy Dalton is with the Bengals (and there is no indication he is going anywhere anytime soon).
The Bengals could make that difficult if he is a restricted free agent because a team would have to give up some sort of compensation to sign McCarron.