Novak Djokovic has withdrawn from Serbia's Davis Cup tie against Denmark because of a hamstring injury. The 24-time Grand Slam champion was booed off court by some Australian Open fans last week when he retired with the issue after losing the first set of his semi-final against Alexander Zverev.

Novak Djokovic’s attempts to set up a ‘players union’ have struggled to get off the ground, but now his Professional Tennis Players Association (PTPA) have announced a hugely significant financial boost to its members.

World number six Novak Djokovic has pulled out of Serbia's Davis Cup first-round qualifying tie due to injury, the country's tennis federation (TSS) said. Djokovic, who was set to represent Serbia in their Jan.