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Marketa Vondrousova of Czech Republic returns the ball to Coco Vandeweghe of the USA during their semi-finals Fed Cup match match in Tampa, Florida April 22, 2017 / AFP PHOTO / RHONA WISE (Photo credit should read RHONA WISE/AFP/Getty Images)

Marketa Vondrousova of Czech Republic returns the ball to Coco Vandeweghe of the USA during their semi-finals Fed Cup match match in Tampa, Florida April 22, 2017 / AFP PHOTO / RHONA WISE        (Photo credit should read RHONA WISE/AFP/Getty Images)