Article Photos: OSU football: Missouri is one of this season's surprises in college football 52/109

Oklahoma's Charles Tapper (91) chases down Oklahoma State's Clint Chelf (10) for a sack during the Bedlam college football game between the Oklahoma State University Cowboys (OSU) and the University of Oklahoma Sooners (OU) at Boone Pickens Stadium in Stillwater, Okla., Saturday, Dec. 7, 2013. Photo by Chris Landsberger, The Oklahoman