Djokovic, Nadal lead field for 2021 ATP Cup   ATP Media Release: (January 4, 2021) World No.1 Novak Djokovic and world No.2 Rafael Nadal headline the event as the top-ranked singles players for Serbia and Spain, respectively. In 2020, Serbia defeated Spain 2-1 in a championship clash. This year's event will be held from February 1-5 in Melbourne.   Reigning Nitto … [Read more...] about Djokovic, Nadal lead field for 2021 ATP Cup