World No.1 says tennis needs to change amid rumours of rebel tourSerbia star is in Perth for United Cup ahead of Australian Open
World No.1 Novak Djokovic says tennis needs to innovate, but that he remains in the dark about a potential rebel tour.
Rumours are growing that a LIV Golf-style elite tennis tour could be launched, possibly as early as 2025, to rival the ATP and WTA tours.