Article Photos: Oklahoma football: Sooners' defense shines in first half 10/99

Oklahoma's Gabe Lynn (9) and Aaron Colvin (14) bring down TCU 's Ty Slanina (13) during the college football game between the University of Oklahoma Sooners (OU) and the Texas Christian University Horned Frogs (TCU) at the Gaylord Family-Oklahoma Memorial Stadium on Saturday, Oct. 5, 2013 in Norman, Okla.   Photo by Chris Landsberger, The Oklahoman