A class-action antitrust lawsuit was filed by the PTPA in federal court in New York on Tuesday, calling the groups in charge of the sport a "cartel"

The tennis players’ association that was co-founded by Novak Djokovic has filed multiple lawsuits around the world against the sport’s tours and governing bodies.

The players’ association co-founded by Novak Djokovic has filed an antitrust lawsuit against the women’s and men’s professional tours, the International Tennis Federation and the sport’s integrity agency.