Video PlayerClose
Tennys Sandgren of the United States reacts during the men's singles quarterfinal match against Rodger Federer of Switzerland at the Australian Open tennis championship in Melbourne, Australia on Jan. 28, 2020. (Xinhua/Zhu Wei)
Tennys Sandgren of the United States reacts during the men's singles quarterfinal match against Rodger Federer of Switzerland at the Australian Open tennis championship in Melbourne, Australia on Jan. 28, 2020. (Xinhua/Zhu Wei)