Oklahoma football: Sooner defense strong enough to make Knight debut a winner - Article Photos 34/72

Oklahoma's Corey Nelson (7) and Frank Shannon (20) react after a stop on Louisiana Monroe's Kolton Browning (15) 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