"Unfortunately M.J. Salahuddin had a knee injury four or five days ago that will keep him out for a while," said Doeren. "I hate to see it for M.J. like I do for any player. He may be one of the better workers on our football team."
Salahuddin, a junior, started five games last season, totaling 25 tackles. He had been projected to start at middle linebacker.
"He was doing great," said Doeren. "It was really just a routine play, it was nothing crazy about it... just taking on a block.
"I'm not going to get into the specifics of what happened to him. I don't think that's right. It's an injury that required surgery and he'll be back."
NC State redshirt freshman Jerod Fernandez could slide into that role, and freshman Airius Moore is backing him up at the position. Also, seniors Brandon Pittman and Rodman Noel are competing for the weakside linebacker position, and Noel could slide inside if needed.