Japan's Kei Nishikori lost to Roger Federer of Switzerland on Wednesday, failing in his bid to become the first Japanese man in 86 years to reach the semifinals at Wimbledon.Nishikori, competing in the quarters of the grass-court major for the second straight year, lost to eight-time champion Federer 4-6, 6-1, 6-4, 6-4 on Centre Court at the All England Club."I couldn't keep my game together after the first set," Nishikori said. "I had a tough time holding serve, and in the last two sets I made a lot of mistakes.""But it was a good experience to play against such a strong opponent," he said…READ FULL ARTICLE