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(190125) -- MELBOURNE, Jan. 25, 2019 (Xinhua) -- Novak Djokovic of Serbia hits a return during the men's singles semifinal match between Novak Djokovic of Serbia and Lucas Pouille of France at the 2019 Australian Open in Melbourne, Australia, on Jan. 25, 2019. Novak Djokovic won 3-0. (Xinhua/Bai Xuefei)