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 headline the eight-man Tie Break Tens tournament at Margaret Court Arena at Melbourne Park on January 10. Each match will last for one tiebreak, with the first player to 10 points winning. The entire tournament will be completed on the night, and the winner will pocket US$250,000.