Rafael Nadal of Spain serves during the men's singles third round match against Alexander Zverev of Germany at the Australian Open Tennis Championships in Melbourne, Australia, Jan. 21, 2017. Nadal won 3-2. (Xinhua/Lui Siu Wai)
Rafael Nadal of Spain serves during the men's singles third round match against Alexander Zverev of Germany at the Australian Open Tennis Championships in Melbourne, Australia, Jan. 21, 2017. Nadal won 3-2. (Xinhua/Lui Siu Wai)