Oklahoma State football: No one knew how bad of an injury J.W. Walsh had suffered until Sunday - Article Photos 18/37

Oklahoma State's Alex Elkins (37) pressures Iowa State's Jared Barnett (7) during a college football game between Oklahoma State University (OSU) and Iowa State University (ISU) at Boone Pickens Stadium in Stillwater, Okla., Saturday, Oct. 20, 2012. OSU won, 31-10. Photo by Nate Billings, The Oklahoman