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Romania's Sorana Cirstea returns against Spain's Garbine Muguruza during their women's singles third round match on the sixth day of the 2017 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 8, 2017. / AFP PHOTO / Glyn KIRK / RESTRICTED TO EDITORIAL USE (Photo credit should read GLYN KIRK/AFP/Getty Images)

Romania's Sorana Cirstea returns against Spain's Garbine Muguruza during their women's singles third round match on the sixth day of the 2017 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 8, 2017. / AFP PHOTO / Glyn KIRK / RESTRICTED TO EDITORIAL USE        (Photo credit should read GLYN KIRK/AFP/Getty Images)

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Romania's Sorana Cirstea serves to Spain's Garbine Muguruza during their women's singles third round match on the sixth day of the 2017 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 8, 2017. / AFP PHOTO / Glyn KIRK / RESTRICTED TO EDITORIAL USE (Photo credit should read GLYN KIRK/AFP/Getty Images)

Romania's Sorana Cirstea serves to Spain's Garbine Muguruza during their women's singles third round match on the sixth day of the 2017 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 8, 2017. / AFP PHOTO / Glyn KIRK / RESTRICTED TO EDITORIAL USE        (Photo credit should read GLYN KIRK/AFP/Getty Images)

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TOPSHOT - Romania's Sorana Cirstea returns against Spain's Garbine Muguruza during their women's singles third round match on the sixth day of the 2017 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 8, 2017. / AFP PHOTO / Glyn KIRK / RESTRICTED TO EDITORIAL USE (Photo credit should read GLYN KIRK/AFP/Getty Images)

TOPSHOT - Romania's Sorana Cirstea returns against Spain's Garbine Muguruza during their women's singles third round match on the sixth day of the 2017 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 8, 2017. / AFP PHOTO / Glyn KIRK / RESTRICTED TO EDITORIAL USE        (Photo credit should read GLYN KIRK/AFP/Getty Images)

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Romania's Sorana Cirstea returns against Spain's Garbine Muguruza during their women's singles third round match on the sixth day of the 2017 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 8, 2017. / AFP PHOTO / Glyn KIRK / RESTRICTED TO EDITORIAL USE (Photo credit should read GLYN KIRK/AFP/Getty Images)

Romania's Sorana Cirstea returns against Spain's Garbine Muguruza during their women's singles third round match on the sixth day of the 2017 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 8, 2017. / AFP PHOTO / Glyn KIRK / RESTRICTED TO EDITORIAL USE        (Photo credit should read GLYN KIRK/AFP/Getty Images)

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LONDON, UNITED KINGDOM - JULY 08: Sorana Cirstea of Romania in action against Garbine Muguruza of Spain (not seen) on day six of the 2017 Wimbledon Championships at the All England Lawn and Croquet Club in London, United Kingdom on July 08, 2017. (Photo by Lindsey Parnaby/Anadolu Agency/Getty Images)

LONDON, UNITED KINGDOM - JULY 08: Sorana Cirstea of Romania in action against Garbine Muguruza of Spain (not seen) on day six of the 2017 Wimbledon Championships at the All England Lawn and Croquet Club in London, United Kingdom on July 08, 2017.
 (Photo by Lindsey Parnaby/Anadolu Agency/Getty Images)