Arkansas had driven to the 2, and it sure looks like he's faking an injury to slow things down(Bielema sure thought so). He didn't return to the game though(this happened early in the 4th), so either there was something to the injury or he did it on his own and got punished. There were just 2 seconds to go in the 3rd Qtr, which makes a really weird time to go down. Arkansas had just gotten a first down at the 2 after an 11-play drive. Was Arkansas trying to hurry to the line and punch it in before the 4th? That said, he's a sophomore backup LB. Arkansas ran series of 6 plays (then punt), 4 plays (then punt), and 1 play (then fumble) in the 4th quarter. So it wouldn't be unusual for a backup LB to not get on the field in any of those series, even if he was totally healthy.