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Fabio Fognini of Italy hits the ball during the men's singles third round match against Guido Pella of Argentina at the 2020 Australian Open tennis tournament in Melbourne, Australia, Jan. 24, 2020. (Xinhua/Bai Xue)

Fabio Fognini of Italy hits the ball during the men's singles third round match against Guido Pella of Argentina at the 2020 Australian Open tennis tournament in Melbourne, Australia, Jan. 24, 2020. (Xinhua/Bai Xue)