Viktor Troicki Pictures

  • KEY BISCAYNE, FL - MARCH 22: Novak Djokovic of Serbia returns a shot to Alexander Peya of Austria and Nikola Mektic of Croatia while playing with Viktor Troiki of Serbia during Day 4 of the Miami Open at the Crandon Park Tennis Center on March 22, 2018 in Key Biscayne, Florida. (Photo by Matthew Stockman/Getty Images)