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Lorenzo Musetti of Italy is in action during his boys' singles Final match against Emilio Nava of the United States at 2019 Australian Open at Melbourne Park in Melbourne, Australia, on Jan. 26, 2019. (Xinhua/Bai Xue)
Lorenzo Musetti of Italy is in action during his boys' singles Final match against Emilio Nava of the United States at 2019 Australian Open at Melbourne Park in Melbourne, Australia, on Jan. 26, 2019. (Xinhua/Bai Xue)