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Casper Ruud of Norway hits a return against Fabio Fognini of Italy during the ATP Cup tennis group D match in Perth, Australia, on Jan. 5, 2020. (Photo by Zhou Dan/Xinhua)
Casper Ruud of Norway hits a return against Fabio Fognini of Italy during the ATP Cup tennis group D match in Perth, Australia, on Jan. 5, 2020. (Photo by Zhou Dan/Xinhua)