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 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 Professional Tennis Players Association, along with 22 players, have filed multiple lawsuits in several countries against the ATP, WTA, ITF, and ITIA. The suit alleges that those international tennis organizations have engaged in anticompetitive business practices that suppress their potential earnings and cast aside health and safety concerns,