Article Photos: Oklahoma football: Sooner defense's next test is toughest 4/7

OU: Oklahoma defensive coordinator Mike Stoops during a college football game between the University of Oklahoma and West Virginia University on Mountaineer Field at Milan Puskar Stadium in Morgantown, W. Va., Nov. 17, 2012. OU won, 50-49. Photo by Nate Billings, The Oklahoman