2016 French Open - Day Eight [Getty Images]

PARIS, FRANCE - MAY 29: Serena Williams of the United States and Venus Williams of the United States talk tactics during the Ladies Singles fourth round match against Kki Bertens of Netherlands and Johanna Larsson of Sweden on day eight of the 2016 French Open at Roland Garros on May 29, 2016 in Paris, France. (Photo by Clive Brunskill/Getty Images)

Getty Images Sport Clive Brunskill