UPDATE (3:54 p.m.): Tim May of The Columbus Dispatch and ESPN's Robert Smith are reporting J.T. Barrett dislocated his right ankle and suffered a "probably broken bone."

Ohio State star quarterback J.T. Barrett has left Ohio State’s game against arch rival Michigan Saturday after an apparent knee injury.

He suffered the injury early in the fourth quarter. He laid on the field for several minutes before being carted off to the team’s locker room.

USA Today captured this photo: 

Barrett, whose play has garnered him national attention and accolades, has 176 yards and a touchdown on 13-of-21 passes. He has also rushed for 89 yards and two touchdowns on 15 carries.

There is no official word from Ohio State on Barrett’s status.