The Browns quarterback is unlikely to play in Cleveland's regular-season finale after being diagnosed with a concussion on Wednesday, per Nate Ulrich of the Akron Beacon Journal. Manziel was placed in the league's concussion protocol.
Browns coach Mike Pettine told reporters that Manziel would start if he's cleared despite an online video that appeared to show Johnny getting festive with a can of Four Loko on Christmas Eve.
If Manziel can't play Sunday, Pettine said Austin Davis would step in to make his second start of the year ahead of Terrelle Pryor, who also will take snaps under center during Wednesday's practice.
We'll find out soon enough if Johnny's critical end-of-year audition will continue or be cut short.