Article Photos: Oklahoma football: After three strong quarters, Sooner defense faltered when it most mattered 7/95

Oklahoma's Aaron Colvin (14) breaks up a pass intended for Kansas State's Tyler Lockett (16) during a college football game between the University of Oklahoma Sooners (OU) and the Kansas State University Wildcats (KSU) at Gaylord Family-Oklahoma Memorial Stadium, Saturday, September 22, 2012. Photo by Bryan Terry, The Oklahoman