Notre Dame quarterback Everett Golson suffered a sprained AC joint in his right (throwing) shoulder during Saturday's 43-40 loss to Northwestern, coach Brian Kelly said Sunday.

Golson, a redshirt junior, played the entire game and completed 21 of 40 passes for 287 yards with three touchdowns and one interception, fumbling once as well. Kelly said that Golson told him that he could throw Sunday if he needed to, and he was not sure if the shoulder sprain affected him in Saturday's overtime defeat.

"I don't know," Kelly said during his weekly teleconference. "I haven't gotten a chance to talk to him about it. There were certainly a couple of throws when he first did it where he put the ball into the ground. You could see that it affected him then. He said he was fine after that but obviously we missed some throws, especially in overtime. But he said it didn't affect him."

Kelly also said that defensive linemen Sheldon Day and Daniel Cage suffered knee sprains Saturday and that both are awaiting MRI results to determine the severity of the injuries.