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Marta Kostyuk: Tennis star asks 'What am I living for?' as Ukrainians grapple with the toll of Russia's invasion | CNN
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Marta Kostyuk: Ukrainian tennis player chooses not to shake hands with Belarusian opponent Victoria Azarenka at US Open | CNN
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Ukraine's Marta Kostyuk dedicates first WTA Tour title to 'all the people who are fighting and dying' | Tennis News | Sky Sports
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US Open: Ukrainian Marta Kostyuk declines to shake Victoria Azarenka's hand as Iga Swiatek lays down a marker | Tennis News | Sky Sports
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