Highlights of women's 4th round matches at 2019 Australian Open

Angelique Kerber (R) of Germany shakes hand with Danielle Collins of the United States during women's singles 4th round match between Angelique Kerber of Germany and Danielle Collins of the United States at 2019 Australian Open in Melbourne, Australia, on Jan. 20, 2019. (Xinhua/Bai Xue)