UPDATE: Steelers rookie cornerback Joey Porter Jr. has been ruled OUT for the game with a concussion.
UPDATE: Joey Porter Jr. is being evaluated for a concussion.
Porter went to make a tackle on Stefon Diggs when a Bills offensive lineman came in from behind to shove Diggs forward, sandwiching Porter. The Penn State product was holding his head while down on the turf before exiting the game. Porter was taken to the locker room.