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PARIS, FRANCE - JUNE 08: Simona Halep of Romania plays a forehand during the women's singles semi finals match against Karolina Pliskova of Czech Republic on day twelve of the 2017 French Open at Roland Garros on June 8, 2017 in Paris, France. (Photo by Aurelien Meunier/Getty Images)

PARIS, FRANCE - JUNE 08:  Simona Halep of Romania plays a forehand during the women's singles semi finals match against Karolina Pliskova of Czech Republic on day twelve of the 2017 French Open at Roland Garros on June 8, 2017 in Paris, France.  (Photo by Aurelien Meunier/Getty Images)

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PARIS, FRANCE - JUNE 08: Simona Halep of Romania plays a forehand during the women's singles semi finals match against Karolina Pliskova of Czech Republic on day twelve of the 2017 French Open at Roland Garros on June 8, 2017 in Paris, France. (Photo by Aurelien Meunier/Getty Images)

PARIS, FRANCE - JUNE 08:  Simona Halep of Romania plays a forehand during the women's singles semi finals match against Karolina Pliskova of Czech Republic on day twelve of the 2017 French Open at Roland Garros on June 8, 2017 in Paris, France.  (Photo by Aurelien Meunier/Getty Images)

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PARIS, FRANCE - JUNE 08: Simona Halep of Romania plays a forehand during the women's singles semi finals match against Karolina Pliskova of Czech Republic on day twelve of the 2017 French Open at Roland Garros on June 8, 2017 in Paris, France. (Photo by Aurelien Meunier/Getty Images)

PARIS, FRANCE - JUNE 08:  Simona Halep of Romania plays a forehand during the women's singles semi finals match against Karolina Pliskova of Czech Republic on day twelve of the 2017 French Open at Roland Garros on June 8, 2017 in Paris, France.  (Photo by Aurelien Meunier/Getty Images)

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PARIS, FRANCE - JUNE 08: Simona Halep of Romania plays a forehand during the women's singles semi finals match against Karolina Pliskova of Czech Republic on day twelve of the 2017 French Open at Roland Garros on June 8, 2017 in Paris, France. (Photo by Aurelien Meunier/Getty Images)

PARIS, FRANCE - JUNE 08:  Simona Halep of Romania plays a forehand during the women's singles semi finals match against Karolina Pliskova of Czech Republic on day twelve of the 2017 French Open at Roland Garros on June 8, 2017 in Paris, France.  (Photo by Aurelien Meunier/Getty Images)

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PARIS, FRANCE - JUNE 08: Simona Halep of Romania plays a forehand during the women's singles semi finals match against Karolina Pliskova of Czech Republic on day twelve of the 2017 French Open at Roland Garros on June 8, 2017 in Paris, France. (Photo by Aurelien Meunier/Getty Images)

PARIS, FRANCE - JUNE 08:  Simona Halep of Romania plays a forehand during the women's singles semi finals match against Karolina Pliskova of Czech Republic on day twelve of the 2017 French Open at Roland Garros on June 8, 2017 in Paris, France.  (Photo by Aurelien Meunier/Getty Images)