Article Photos: OU football: Linebacker Dominique Alexander will likely step in with Corey Nelson done for season 88/112

Oklahoma's Frank Shannon (20) stops TCU 's B.J. Catalon (23) 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