Article Photos: Oklahoma football: Sooners' first-team defense has given up 7 points in last three games 20/81

OU's Corey Nelson (7) brings down KU's James Sims (29) during the college football game between the University of Oklahoma Sooners (OU) and the University of Kansas Jayhawks (KU) at Gaylord Family-Oklahoma Memorial Stadium on Saturday, Oct. 20th, 2012, in Norman, Okla. Photo by Chris Landsberger, The Oklahoman