It looks like a new quarterback is about to enter the mix Vikings’ quarterback mix. Should Minnesota be unable to re-sign free agent Case Keenum, it is expected to consider AJ McCarron.

McCarron, 27, on Thursday was ruled an unrestricted free agent after winning a grievance against the Cincinnati Bengals, for whom he was primarily a backup to Andy Dalton.

McCarron, the former Alabama star, will be considered, more seriously, by several other teams besides the Vikings, including Cleveland, Arizona, Denver and the New York Jets.