Video PlayerClose
Alex Bolt of Australia serves the ball during the men's singles 3rd round match against Alexander Zverev of Germany at the Australian Open in Melbourne, Australia, Jan. 19, 2019. (Xinhua/Hu Jingchen)
Alex Bolt of Australia serves the ball during the men's singles 3rd round match against Alexander Zverev of Germany at the Australian Open in Melbourne, Australia, Jan. 19, 2019. (Xinhua/Hu Jingchen)