Roger Federer (R) of Switzerland shakes hands with his compatriot Stan Wawrinka after the men's singles semifinal match at the Australian Open tennis championships in Melbourne, Australia, Jan. 26, 2017. Roger Federer won 3-2. (Xinhua/Bai Xue)
Roger Federer (R) of Switzerland shakes hands with his compatriot Stan Wawrinka after the men's singles semifinal match at the Australian Open tennis championships in Melbourne, Australia, Jan. 26, 2017. Roger Federer won 3-2. (Xinhua/Bai Xue)