Czech Republic's Karolina Pliskova celebrates after the women's singles fourth round match against Australia's Daria Gavrilova at the Australian Open Tennis Championships in Melbourne, Australia, Jan. 23, 2017. (Xinhua/Zhu Hongye)
Czech Republic's Karolina Pliskova celebrates after the women's singles fourth round match against Australia's Daria Gavrilova at the Australian Open Tennis Championships in Melbourne, Australia, Jan. 23, 2017. (Xinhua/Zhu Hongye)
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