Article Photos: Oklahoma football: Sooners' defense shines in first half 61/99

Oklahoma's Brannon Green loses a TCU kickoff that is recovered by TCU during the second half of a college football game between the University of Oklahoma Sooners (OU) and the TCU Horned Frogs at Gaylord Family-Oklahoma Memorial Stadium in Norman, Okla., on Saturday, Oct. 5, 2013. Photo by Steve Sisney, The Oklahoman