That night after the afternoon game, Knight realized it was more than just soreness.
His knee started tightening up that night and an MRI the next day showed all four of the ligaments — the anterior cruciate, posterior cruciate, medial collateral and lateral collateral — were sprained.
“It's just facing a little adversity,” Knight said. “It's going to happen to everyone whether it's during a game or during a season like this. You can't get down.”
After Bell threw for 413 yards and four touchdowns against Tulsa and was efficient against Notre Dame, there is no quarterback controversy.
Bell is clearly the guy. There was, though, question about Knight being No. 2 after Kendal Thompson returned from a broken foot.
Earlier this week, coach Bob Stoops said he wasn't sure who would be the backup against the Irish, saying it would be Heupel's call.
Knight isn't completely back, but he's thrilled at getting those six plays Saturday.
“I feel good. I wouldn't say 100 percent but feel obviously good enough to play,” Knight said. “Coming out of the West Virginia game, your head's down a little bit even though we got the big win and just coming back in and getting a good play to start it off felt good.”