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MONACO - JULY 21: Prince Charlene of Monaco during the IAAF Diamond League Meeting Herculis on July 21, 2017 in Monaco, Monaco. (Photo by Michael Steele/Getty Images)

MONACO - JULY 21:  Prince Charlene of Monaco during the IAAF Diamond League Meeting Herculis on July 21, 2017 in Monaco, Monaco.  (Photo by Michael Steele/Getty Images)