On Saturday, Ryan Mallett was supposed to emerge as the Heisman front-runner. He didn't, the Arkansas Razorbacks lost, the Alabama Crimson Tide won a big road game and now, we're left with this: a familiar face at the top of the Week 4 Heisman Predictor standings.
42mKevin Van Valkenburg
1hSam Khan Jr.
5hDan Arritt, Special to ESPN.com