Former IBF Cruiserweight Champion Steve ‘USS’ Cunningham has returned to training at the James Shuler Memorial Gym in West Philadelphia just three weeks after losing his crown by close split-decision to Tomasz ‘Goral’ Adamek. After chatting about the fight with ‘early bird’ gym mates Gee Culmer, Darren Fallen and Marianne “Golden Girl” Marston, Cunningham went…