LSU's Riley rolls his ankle

Posted by ESPN.com's Chris Low

TUSCALOOSA, Ala. -- LSU linebacker Perry Riley rolled his ankle and left the game late in the first quarter.

He was on the sideline trying to run for the Tigers' medical staff, but it was obvious he was favoring his ankle a little bit.

LSU's linebacker corps has played some of its best football these last three games, and Riley has been a big part of the Tigers' defensive success.