Spanish player Rafael Nadal returns the ball to Canadian player Milos Raonic during the final match of the Mubadala World Tennis Championship in Abu Dhabi on January 2, 2016. Nadal won the match 7-6, 6-3. AFP PHOTO / MARWAN NAAMANI / AFP / MARWAN NAAMANI (Photo credit should read MARWAN NAAMANI/AFP/Getty Images)
