Kei Nishikori thought he was playing well. Then he played Novak Djokovic. The top-ranked Serb never gave Nishikori an opportunity in a 6-2, 6-0 rout of the home favorite from Japan to reach the semifinals of the tennis tournament at the Tokyo Olympics on Thursday. “He was defending amazing today — everything deep — and I was trying to stay with him but I couldn’t,” Nishikori said. “I thought I was playing OK but my serving was bad today and he was attacking every [time].” The dominant performance advanced Djokovic into the medal rounds and — more importantly — moved him one […]