PARIS, FRANCE - JUNE 05: Marketa Vondrousova of Czech Republic returns a shot during her girls' singles semi final match against Paula Badosa Gibert of Spain on day thirteen of the 2015 French Open at Roland Garros on June 5, 2015 in Paris, France. (Photo by Dan Istitene/Getty Images)

PARIS, FRANCE - JUNE 05:  Marketa Vondrousova of Czech Republic returns a shot during her girls' singles semi final match against  Paula Badosa Gibert of Spain on day thirteen of the 2015 French Open at Roland Garros on June 5, 2015 in Paris, France.  (Photo by Dan Istitene/Getty Images)