The release from LSU SID Michael Bonnette says that Les Miles will not release the specifics of the injury, but that Mettenberger is definitely ruled out for whichever postseason contest the Tigers play in. Freshman QB Anthony Jennings, who led a 99-yard game-winning touchdown drive against Arkansas in Mettenberger's stead, is expected to get his first career start in the bowl game.
"We are very disappointed for Zach," Miles said in the release. "He's been a tremendous leader for our team and he's as competitive a guy as I have ever been around. He's had a great impact on our program...
"I know Zach will work extremely hard to rehabilitate his knee and I don't anticipate this injury having any impact on what should be a great future in the NFL."
Mettenberger finished the 2013 season with 3,082 yards passing, 22 touchdowns and a 64.9 completion percentage, all good for third in school history. He's the only LSU QB to ever throw for more than 2,500 yards in consecutive seasons, and he finishes his LSU career in the top 10 of six different passing categories: completion percentage (third with 61.7 percent), yards per game (third with 192.8), touchdowns (fifth with 35), yards (sixth with 5,783), completions (sixth with 407) and attempts (seventh with 659).