Article Photos: Oklahoma football: Defensive linemen Jordan Phillips, Chuka Ndulue able to pressure Sooners' offense 26/59

Charles Tapper (91) goes around Bronson Irwin (68) on defense during the annual Spring Football Game at Gaylord Family-Oklahoma Memorial Stadium in Norman, Okla., on Saturday, April 13, 2013. Photo by Steve Sisney, The Oklahoman