Calling the groups in charge of professional tennis "a cartel," the players' association co-founded by Canada's Vasek Pospisil and Serbia's Novak Djokovic filed an antitrust lawsuit against the women's and men's tours,

The lawsuit seeks a jury trial and wants players to gain access to more earnings, arguing that the governing bodies that oversee the four Grand Slam tournaments and other professional events “cap the prize money tournaments award and limit players’ ability to earn money off the court.

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.