Knile Davis' story is a particularly sad one.
He was finally given the opportunity to put the team on his back in 2010. He produced more than 1,300 yards and 13 touchdowns that season.
2011 looked to be his year, but a preseason ankle injury cost him the entire season.
This season, he's been working his way back to form, but eight games in, he has less than half the touches he did in 2010.
Davis picked up a hamstring injury last week and has been listed out for the game against Tulsa this week, according to ESPN.
The Razorbacks are 3-5 this season, going up against a 7-1 Tulsa unit.
Arkansas' lack of production in the ground game has been a large part of their demise this season. Going up against a team like Tulsa without Knile Davis could provide an embarrassing result for the Razorbacks.
Tulsa has been perfect in Conference USA so far and have put together a formidable run game of their own this season, as they're the ninth best rushing team in the nation.
Without the aid of Knile Davis, senior Dennis Johnson will have to pick up the load. If Tulsa gets their run game going, they'll own the clock and make it very difficult for Arkansas to counter.