Norman, Okla. ? Oklahoma basketball coach Lon Kruger has added a much-needed big man to the Sooners’ roster by signing 6-foot-10, 240-pound Casey Arent. Kruger announced the signing of the transfer from Sierra College (Calif.) on Thursday. Arent is from Penryn, Calif., and averaged 19.1 points, 11.4 rebounds and 2.3 blocked shots per game as a sophomore.