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MASON, OH - AUGUST 19: Simona Halep of Romania hits a return in her quarterfinal match against Agnieszka Radwanska during day 7 of the Western & Southern Open at the Lindner Family Tennis Center on August 19, 2016 in Mason, Ohio. (Photo by Andy Lyons/Getty Images)

MASON, OH - AUGUST 19:  Simona Halep of Romania hits a return in her quarterfinal match against Agnieszka Radwanska during day 7 of the Western & Southern Open at the Lindner Family Tennis Center  on August 19, 2016 in Mason, Ohio.  (Photo by Andy Lyons/Getty Images)