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Fabio Fognini of Italy competes during the ATP Cup Group D match against John Isner of the United States in Perth, Australia, on Jan. 7, 2020. (Photo by Zhou Dan/Xinhua)
Fabio Fognini of Italy competes during the ATP Cup Group D match against John Isner of the United States in Perth, Australia, on Jan. 7, 2020. (Photo by Zhou Dan/Xinhua)