The professional tennis tours, along with two other defendants, have jointly filed a motion in a federal court in New York to dismiss a class-action antitrust lawsuit brought by the Professional Tennis Players' Association (PTPA). The PTPA, co-founded by Novak Djokovic, represents tennis players who are classified as independent contractors and therefore cannot legally form a union. As a result, the association does not have collective bargaining protections against antitrust claims related to agreed-upon labor practices. The motion to dismiss argues that the lawsuit lacks legal basis given the independent contractor status of players and the nature of the PTPA as an association rather than a union.