Bo Pelini did not return from the locker room at halftime, suffering reported flu-like symptoms. ESPN is reporting that Pelini left the stadium in an ambulance. We will update as more information emerges.

Update (2:33 pm) Here is a grab of Pelini having his pulse checked on the sideline.

Update (3:45pm) Bo Pelini released a statement via NYTimes: “Everything is fine, precautionary tests. Proud of our team and I’ll be back at work tomorrow.”