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Angelique Kerber of Germany celebrates during the women's singles first round match against Anna-Lena Friedsam of Germany at Australian Open 2018 in Melbourne, Australia, Jan. 16, 2018. Kerber won 2-0. (Xinhua/Li Peng)
Angelique Kerber of Germany celebrates during the women's singles first round match against Anna-Lena Friedsam of Germany at Australian Open 2018 in Melbourne, Australia, Jan. 16, 2018. Kerber won 2-0. (Xinhua/Li Peng)