PREVIEW

(200122) -- MELBOURNE, Jan. 22, 2020 (Xinhua) -- Xu Yifan (L) of China/Nicole Melichar of the United States talk with each other during the women's doubles first round match against Jennifer Brady/Caroline Dolehide of the United States at the 2020 Australian Open tennis tournament in Melbourne, Australia, Jan. 22, 2020. (Photo by Bai Xue/Xinhua)