Novak Djokovic is set to kick off his preparation for next month’s Australian Open by competing in the Brisbane International warm-up tournament. The record 24-time Grand Slam champion will join defending Brisbane champion Grigor Dimitrov and American Frances Tiafoe at the ATP 250 event, which begins on December 29. Australians Nick Kyrgios and Aryna Sabalenka are also among the participants. Djokovic is just one title shy of matching Margaret Court’s record of 24 Grand Slam singles titles. The Serbian star
