Darrion Caldwell and Joe Warren Darrion Caldwell said he was going to leave Joe Warren stiff as a board in Round 1 of their bantamweight Bellator 151 main event and he didn’t disappoint. Caldwell (9-0 MMA, 6-0 BMMA) dominated Warren (13-5 MMA, 11-4 BMMA) from the opening bell and choked him unconscious at the 3:23 mark of Round 1. Bellator 151 took place at WinStar World Casino and Resort in Thackerville, Okla. The main card aired on Spike following prelims on MMAjunkie. Caldwell wasted no time scoring a takedown on the Olympic gold medalist, using a trip to put the fight on the ground. Warren worked back to his feet but the victory was brief.