Article Photos: Oklahoma football: Sooner defense strong enough to make Knight debut a winner 59/72

Dannon Cavil (6) catches a pass defended by Rob'Donovan Lewis (4) during the first half of the college football game where the University of Oklahoma Sooners (OU) play the University of Louisiana Monroe Warhawks at Gaylord Family-Oklahoma Memorial Stadium in Norman, Okla., on Saturday, Aug. 31, 2013. Photo by Steve Sisney, The Oklahoman