Roger Federer of Switzerland and Kei Nishikori of Japan compete during the men's singles fourth round match at the Australian Open Tennis Championships in Melbourne, Australia, Jan. 22, 2017. Federer won 3-2. (Xinhua/Bai Xue)
Roger Federer of Switzerland and Kei Nishikori of Japan compete during the men's singles fourth round match at the Australian Open Tennis Championships in Melbourne, Australia, Jan. 22, 2017. Federer won 3-2. (Xinhua/Bai Xue)
![]() |