Which tennis organization did Djokovic co-found with Vasek Pospisil in 2020?

Novak Djokovic co-founded the Professional Tennis Players Association with Vasek Pospisil in 2020.

The PTPA emerged from concerns that professional players needed a stronger, more independent voice in decisions affecting prize money, scheduling, rankings, working conditions and representation. Djokovic and Canadian player Vasek Pospisil had both served on the ATP Player Council before resigning in 2020 amid disagreements about the council's role and effectiveness.

The association was publicly launched in August 2020 during the US Open period. Although its early leadership and membership were centered on men's tennis, the organization later presented itself as an association representing both male and female professional players. Its stated goal was to improve transparency and fairness in tennis governance.

The PTPA is not the same as the ATP Player Council: the council operates within the ATP structure, whereas the PTPA was created as an independent players' association. It is also unrelated to the Laver Cup, a team competition, or the International Tennis Federation, the sport's global governing body.