Trent Richardson shines in Week 4

Trent Richardson had a monster game for Alabama against Arkansas on Saturday. AP Photo/Butch Dill

After another exciting weekend of games, here is my stock report of the college football season. As always, I'll examine players who played well during the weekend and saw their stock rise while also looking at the players who disappointed and saw their stock fall. This week, a couple of running backs' stocks are rising, while a Texas A&M quarterback's stock is going in the opposite direction.

Stock up

LSU CB Tyrann Mathieu
The 5-foot-9, 175-pound sophomore had his coming-out party in Morgantown, W.Va., on Saturday. He showed his athleticism all over the field and was strong against the run and on special teams. His forced fumble was a textbook strip, and his interception tipped to himself was one of the game's turning points. He had been one of the most underrated players in the country coming into this weekend -- but not anymore.