Article Photos: Oklahoma football: Pistol formation is Sooner offense's 'significant wrinkle' 2/2

Oklahoma's Trevor Knight (9) hands the ball off to Brennan Clay (24) during the college football game between the University of Oklahoma Sooners (OU) and the University of Louisiana Monroe Warhawks (ULM) at the Gaylord Family-Oklahoma Memorial Stadium on Saturday, Aug. 31, 2013 in Norman, Okla.  Photo by Chris Landsberger, The Oklahoman