LOS ANGELES – It goes down as a victory for Ben Rothwell , but Saturday’s anticipated BKFC KnuckleMania 4 showdown with Todd Duffee wasn’t what he wanted. Rothwell (3-0) and fellow former UFC heavyweight Duffee (0-1) came out firing after the opening bell, with Rothwell knocking down Duffee twice in the first 0:43 seconds of their bout at Peacock Theater. The second time proved to be the finish as Duffee suffered an apparent right shoulder injury when he fell to the canvas. He immediately pointed to it, forcing referee Dan Miragliota to wave off the fight.