Teddy Bridgewater went on to lead Louisville to one of the biggest upset in BCS bowl history after taking a brutal hit in the Sugar Bowl on Jan. 2. The NCAA scarcely mentions concussions in its manual. (Associated Press)

Teddy Bridgewater went on to lead Louisville to one of the biggest upset in BCS bowl history after taking a brutal hit in the Sugar Bowl on Jan. 2. The NCAA scarcely mentions concussions in its manual. (Associated Press)