COLUMBUS, Ohio -- Ohio State quarterback Braxton Miller left the third-ranked Buckeyes' game against San Diego State after being pinned between tacklers on the first drive of the game.
Ohio State evaluated Miller's left knee and put it in a brace. Coach Urban Meyer said at halftime that Miller had a sprained knee, and Miller did not return to the game. They Buckeyes went on to win 42-7.
Miller, a junior tabbed as one of the top contenders for the Heisman Trophy, carried on fourth-and-1 at the Aztecs' 12 early in the game. He cut inside left end and was hit by defensive back King Holder and middle linebacker Jake Fely, Miller's helmet popping off as he fell.
He lay on the field on his back for a moment, holding his head. He then was helped to his feet and walked under his own power to the sideline before going to the locker room on a cart.
With Kenny Guiton taking his place, the Buckeyes scored on the next play for a 7-0 lead.
Guiton, a senior, had taken over for an injured Miller late in last season's game against Purdue. He led the Buckeyes to an improbable touchdown and then threw a 2-point conversion pass to force overtime. The Buckeyes won 29-22 on the way to a 12-0 season.
Information from ESPN.com's Austin Ward and The Associated Press was used in this report.