Novak Djokovic says he has "stepped away completely" from the Professional Tennis Players Association that he co-founded, citing concerns about "transparency and governance".
Serbian Djokovic, 38, and Canadian tennis player Vasek Pospisil founded the breakaway player union in 2021.
In March 2025, the PTPA launched legal action against tennis' governing bodies - including the ATP and WTA tours - over what it claimed are "anti-competitive practices and a blatant disregard for player welfare".
The ATP and WTA both strongly rejected the accusations and said they would defend their position.
Djokovic, who has won 24 Grand Slam titles, said at the time that he did not agree with the entirety of the PTPA's case and has now ended his association with the organisation.