see more

ABU DHABI, UNITED ARAB EMIRATES - JANUARY 03: Rafael Nadal of Spain in action against Stanislas Wawrinka of Switzerland during the play-off match for third place of the Mubadala World Tennis Championship at Zayed Sport City on January 3, 2015 in Abu Dhabi, United Arab Emirates. (Photo by Francois Nel/Getty Images)

ABU DHABI, UNITED ARAB EMIRATES - JANUARY 03: Rafael Nadal of Spain in action against Stanislas Wawrinka of Switzerland during the play-off match for third place of the Mubadala World Tennis Championship at Zayed Sport City on January 3, 2015 in Abu Dhabi, United Arab Emirates. (Photo by Francois Nel/Getty Images)
Getty Images

Getty Images Sport Francois Nel