By Martin Domin Anthony Joshua refused to criticise Deontay Wilder after the American was beaten by Joseph Parker to leave their $100million double-header in tatters. Joshua kept his end of the deal by stopping Otto Wallin with the Swede quitting on his stool after the end of the fifth round. But Wilder had been outpointed by Parker earlier in the evening to leave his two-fight deal with Joshua in the bin. Joshua, however, refused to condemn his rival despite losing out on another huge payday. “I wasn’t watching, I was just focusing on myself for the whole fight week,” he said. “I knew how imp…