Gopher head men's basketball coach Tubby Smith says he had prostate cancer but no longer has the disease.  Through a statement from the University of Minnesota Smith says he had surgery at the Mayo Clinic in Rochester to remove the cancer last month.  Smith looks forward to returning to Minnesota for a 4th season with the Gophers.  Minnesota returns seniors Trevor Mbakwe and Ralph Sampson III.  The Gophers were 17-14 in 2010-2011.