SYDNEY, Australia (AFP) — Former world number one Novak Djokovic will warm up for a tilt at a record seventh Australian Open crown by playing in an innovative quickfire event at the Melbourne venue. Djokovic, who has been sidelined since July with a right elbow injury, is making his long-awaited return to the game at an exhibition tournament in Abu Dhabi from December 28-30. The Serbian world number 12 and volatile Australian Nick Kyrgios will […]