Watch: Novak Djokovic Honors Kobe Bryant After US Open WinNovak Djokovic is retreating to the baseline. The tennis legend announced that "after careful consideration, "he is stepping away from the Professional Tennis Players Association (PTPA), the organization he and fellow player Vasek Pospisil launched in 2020. "This decision comes after ongoing concerns regarding transparency, governance, and the way my voice and image have been represented," he continued in his Jan. 4 message shared to X.