Judgment of the Court (Grand Chamber) of 21 December 2023.#European Superleague Company, SL v Fédération internationale de football association (FIFA) and Union of European Football Associations (UEFA).#Reference for a preliminary ruling – Competition – Internal market – Rules introduced by international sports associations – Professional football – Private law entities vested with regulatory, control and decision-making powers, and the power to impose sanctions – Rules on prior approval of competitions, on the participation of football clubs and players in those competitions, and also on the exploitation of commercial and media rights related to those competitions – Parallel pursuit of economic activities – Organisation and marketing of competitions – Exploitation of related commercial and media rights – Article 101(1) TFEU – Decision by an association of undertakings adversely affecting competition – Concepts of anticompetitive ‘object’ and ‘effect’ – Exemption under Article 101(3) TFEU – Conditions – Article 102 TFEU – Abuse of dominant position – Justification – Conditions – Article 56 TFEU – Restrictions on the freedom to provide services – Justification – Conditions – Burden of proof.#Case C-333/21.