Article Photos: Oklahoma football: Sooner defense strong enough to make Knight debut a winner 29/72

Oklahoma's Blake Bell (10) walks away from the offensive huddle during the college football game between the University of Oklahoma Sooners (OU) and the University of Louisiana Monroe Warhawks (ULM) at the Gaylord Family Memorial Stadium on Saturday, Aug. 31, 2013 in Norman, Okla.  Photo by Chris Landsberger, The Oklahoman