2015 French Open - Day Eleven [Getty Images]

PARIS, FRANCE - JUNE 03: Serena Williams of the United States slips on the clay in her Women's quarter final match against Sara Errani of Italy on day eleven of the 2015 French Open at Roland Garros on June 3, 2015 in Paris, France. (Photo by Clive Brunskill/Getty Images)

Getty Images Sport Clive Brunskill