Adam Caplan was the first to report the news.
Mettenberger left the game in the fourth quarter and was replaced by freshman Anthony Jennings, who promptly marched the Tigers 99 yards down the field, throwing a game-winning 49-yard touchdown pass to Travin Dural with 1:15 to play.
After the game, Mettenberger could be seen on crutches, but Tigers’ head coach Les Miles did not discuss the injury. At first, it was believed to be a left ankle injury that he originally suffered in the Tigers’ 38-17 loss to the Alabama Crimson Tide on November 9.
Before the injury, Mettenberger was 14-of-22 for 156 yards and an interception.
On the season, Mettenberger, who originally signed and played with the Georgia Bulldogs, completed 192 of 296 passes for 3,082 yards with 22 touchdowns and eight interceptions. Mettenberger was one of the most improved quarterbacks in the country and saw his NFL draft stock soar.
With Oregon’s Marcus Mariota deciding against entering the draft, this is a huge setback for Mettenberger, who could have seen his stock rise even higher.