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Garbine Muguruza of Spain listens to coach Sam Sumyk at the 2019 Miami Open WTA Premier Mandatory tennis tournament Stock Photo - Alamy
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Victoria Azarenka (L) of Belarus talks with her coach Sam Sumyk while practicing at the BNP Paribas Open WTA tennis tournament in Indian Wells, California, March 6, 2013. REUTERS/Danny Moloshok (UNITED STATES -
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Garbine Muguruza parts ways with her coach Sam Sumyk - Tennis Tonic - News, Predictions, H2H, Live Scores, stats
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