Photo Gallery: OU vs. Texas -- Oct. 8, 2011 74/126

Oklahoma's Casey Walker (53) reacts after a defensive stop during the Red River Rivalry college football game between the University of Oklahoma Sooners (OU) and the University of Texas Longhorns (UT) at the Cotton Bowl in Dallas, Saturday, Oct. 8, 2011. Photo by Chris Landsberger, The Oklahoman