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Angelique Kerber of Germany returns the shot during the match between Germany and Canada at Hopman Cup mixed teams tennis tournament in Perth, Australia, Jan. 3, 2018. Germany won 3-0. (Xinhua/Zhou Dan)
Angelique Kerber of Germany returns the shot during the match between Germany and Canada at Hopman Cup mixed teams tennis tournament in Perth, Australia, Jan. 3, 2018. Germany won 3-0. (Xinhua/Zhou Dan)