Some top tennis players are suing the sport’s governing bodies for allegedly running a cartel that caps prize money, limits off-court earnings and restricts competition from rival tournaments.The Professional Tennis Players Association,

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.

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.