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Angelique Kerber of Germany hits a return during the women's singles fourth round match against Hsieh Su-wei of Chinese Taipei at Australian Open 2018 in Melbourne, Australia, Jan. 22, 2018. Kerber won 2-1. (Xinhua/Bai Xuefei)
Angelique Kerber of Germany hits a return during the women's singles fourth round match against Hsieh Su-wei of Chinese Taipei at Australian Open 2018 in Melbourne, Australia, Jan. 22, 2018. Kerber won 2-1. (Xinhua/Bai Xuefei)