Curtis Brinkley took over for injured Ryan Mathews (groin) in Week 8's overtime loss to the Chiefs, posting 10 carries for 43 yards and a touchdown to go with three catches and 24 yards through the air. He also added a two-point conversion immediately after his score. He suffered a concussion during the game and will go through the league's mandated screening process. Even if he's fine, it would be much too optimistic to pick him up before learning whether Mathews and/or Mike Tolbert (hamstring, hand) will be ready for Week 9.