Quarterback AJ McCarron has reportedly filed a grievance against the Cincinnati Bengals in hopes of becoming an unrestricted free agent in 2018.

According to ESPN's Adam Schefter, "McCarron's grievance dates to his rookie season in 2014, when the Bengals drafted him in the fifth round. McCarron initially passed his post-draft physical, but the Bengals placed him on the non-football injury list (NFI) at the start of training camp due to a shoulder issue."

But as Schefter noted, the Bengals didn't activate McCarron until Dec. 9, and he didn't accrue the six games necessary to receive a tolled year on his contract that would have contributed toward unrestricted free agency.

As a result, McCarron is scheduled to be a restricted free agent at season's end.