No. 1 Alabama, already playing without cornerbacks Josh Jobe and Jalyn Armour-Davis, had star outside linebacker Will Anderson leave Saturday's game against Mercer with an apparent leg injury.
Anderson, one of the top pass-rushers in college football, appeared to take a helmet to his knee when a Mercer player cut block him.
He was looked at by trainers on the sideline and was then escorted to the locker room with the No. 1 Crimson Tide leading 38-7 midway through the third quarter.
It wasn't clear why Jobe and Armor-Davis weren't available for Saturday's game.