Michigan quarterback Cade McNamara made his first career start against Penn State on Saturday, but suffered a shoulder injury after scrambling on second-and-goal during the Wolverines second possession.

McNamara stayed in the game, but received medical attention once he left the field, and went into the locker room shortly after.

Joe Milton, who McNamara replaced as the starter, ran the offense for two possessions before McNamara re-entered the game, but the injury was clearly an issue.

Prior to the injury, McNamara was 4-for-5 passing for 22 yards. After he returned, he completed 8-of-20 for 69 yards, and was eventually pulled in the fourth quarter during Michigan’s final possession.

The Wolverines lost to Penn State 27-17.

After the game, Harbaugh praised McNamara’s drive to help the team.

“As I said, Cade, really gutty performance to come back, but the shoulder did start to tighten up,” Harbaugh said after the game. “I could see it. He was doing everything he could to stay in the game, but I just felt like that was tightening up and causing (pain). I felt like going to Joe was the best option for us.

“I can tell you this: Cade was doing everything he possibly could to rally the team and to play on when it really — he was, shoulder wasn’t — was tightening up on him. That was the reason.”

Harbaugh followed up on the situation during his weekly press conference on Monday, indicating that who will start behind center is still up in the air.

“Yeah, Cade, we’ll see or evaluate that as the week goes on here,” Harbaugh said. “But don’t know. See how the recovery comes.”