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LONDON, ENGLAND - JULY 10: Simona Halep of Romania reacts during the Ladies Singles fourth round match against Victoria Azarenka of Belarus on day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 10, 2017 in London, England. (Photo by Shaun Botterill/Getty Images)

LONDON, ENGLAND - JULY 10:  Simona Halep of Romania reacts during the Ladies Singles fourth round match against Victoria Azarenka of Belarus on day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 10, 2017 in London, England.  (Photo by Shaun Botterill/Getty Images)

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LONDON, ENGLAND - JULY 10: Simona Halep of Romania sprints during the Ladies Singles fourth round match against Victoria Azarenka of Belarus on day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 10, 2017 in London, England. (Photo by Shaun Botterill/Getty Images)

LONDON, ENGLAND - JULY 10:  Simona Halep of Romania sprints during the Ladies Singles fourth round match against Victoria Azarenka of Belarus on day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 10, 2017 in London, England.  (Photo by Shaun Botterill/Getty Images)

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LONDON, ENGLAND - JULY 10: Simona Halep of Romania plays a backhand during the Ladies Singles fourth round match against Victoria Azarenka of Belarus on day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 10, 2017 in London, England. (Photo by Shaun Botterill/Getty Images)

LONDON, ENGLAND - JULY 10:  Simona Halep of Romania plays a backhand during the Ladies Singles fourth round match against Victoria Azarenka of Belarus on day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 10, 2017 in London, England.  (Photo by Shaun Botterill/Getty Images)

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LONDON, ENGLAND - JULY 10: Simona Halep of Romania plays a backhand during the Ladies Singles fourth round match against Victoria Azarenka of Belarus on day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 10, 2017 in London, England. (Photo by Shaun Botterill/Getty Images)

LONDON, ENGLAND - JULY 10:  Simona Halep of Romania plays a backhand during the Ladies Singles fourth round match against Victoria Azarenka of Belarus on day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 10, 2017 in London, England.  (Photo by Shaun Botterill/Getty Images)

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Simona Halep in action against Victoria Azarenka on day seven of the Wimbledon Championships at The All England Lawn Tennis and Croquet Club, Wimbledon. (Photo by John Walton/PA Images via Getty Images)

Simona Halep in action against Victoria Azarenka on day seven of the Wimbledon Championships at The All England Lawn Tennis and Croquet Club, Wimbledon. (Photo by John Walton/PA Images via Getty Images)