Nikola Cacic Pictures
SYDNEY, AUSTRALIA - JANUARY 13: (L-R) Novak Djokovic, Dusan Lajovic, Nenad Zimonjic, Viktor Troicki and Nikola Cacic of Team Serbia pose with the ATP Cup during a media opportunity after winning the 2020 ATP Cup, at Mrs Macquarie's Chair on January 13, 2020 in Sydney, Australia. (Photo by Matt King/Getty Images)