Article Photos: Oklahoma football: Sooners' secondary shaky without Aaron Colvin, Gabe Lynn 3/99

Oklahoma's Blake Bell (10) prepares to throw the ball during the college football game between the University of Oklahoma Sooners (OU) and the University of Tulsa Hurricanes (TU) at the Gaylord-Family Oklahoma Memorial Stadium on Saturday, Sept. 14, 2013 in Norman, Okla.  Photo by Chris Landsberger, The Oklahoman