Article Photos: Oklahoma football: Sooners' Aaron Colvin adds sacks to his defensive arsenal 68/103

Oklahoma State's Clint Chelf (10) os sacked by Oklahoma's Aaron Colvin (14) during the Bedlam college football game between the University of Oklahoma Sooners (OU) and the Oklahoma State University Cowboys (OSU) at Gaylord Family-Oklahoma Memorial Stadium in Norman, Okla., Saturday, Nov. 24, 2012. Photo by, Sarah Phipps The Oklahoman