Video PlayerClose

Kei Nishikori of Japan competes during the men's first round match against Kamil Majchrzak of Poland at the 2019 Australian Open in Melbourne, Australia, Jan. 15, 2019. Kei Nishikori won 3-2. (Xinhua/Bai Xuefei)

Kei Nishikori of Japan competes during the men's first round match against Kamil Majchrzak of Poland at the 2019 Australian Open in Melbourne, Australia, Jan. 15, 2019. Kei Nishikori won 3-2. (Xinhua/Bai Xuefei)