Dunbar's left knee gave out on him as he attempted to make a cut on the opening kickoff of the second half. He was spotted on crutches with a brace on the knee in the locker room after the game. Dunbar will undergo an MRI on Monday to confirm the diagnosis, but he is likely done for the season.
The loss of Dunbar is another big blow to the Cowboys' offense this season. He was the Cowboys' third RB behind Darren McFadden and Joseph Randle. In addition to the being Dallas' top kick returner, Dunbar was second to Jason Witten (25) with 21 receptions for 215 yards.