Roger Federer of Switzerland arrives at the court ahead of the men's singles final match against Rafael Nadal of Spain at the Australian Open tennis championships in Melbourne, Australia, Jan. 29, 2017. (Xinhua/Bai Xue)
Roger Federer of Switzerland arrives at the court ahead of the men's singles final match against Rafael Nadal of Spain at the Australian Open tennis championships in Melbourne, Australia, Jan. 29, 2017. (Xinhua/Bai Xue)