Novak Djokovic of Serbia serves during the men's singles 4th round match against Daniil Medvedev of Russia at the Australian Open in Melbourne, Australia, on Jan. 21, 2019. Novak Djokovic won 3-1. (Xinhua/Bai Xuefei)
Xinhua photos of the day
Source: Xinhua| 2019-01-22 13:37:44|Editor: Shi Yinglun
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