Johnny Manziel is being evaluated for a possible concussion.

Mike Pettine told reporters that Manziel will start if he's cleared despite a Christmas eve video that appeared to show Manziel getting festive with a can of Four Loko, footage Pettine called "certainly a concern."

Austin Davis would make his second start of the season for the Cleveland Browns if Manziel is unable to play with Terrelle Pryor also a possibility.