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Supreme Court Declines to Revisit Baseball’s Antitrust Exemption

 |  March 2, 2026

The US Supreme Court has declined to take up a case that sought to require Major League Baseball to adhere to federal antitrust law, leaving in place a long-standing judicial carveout that shields the sport from certain legal challenges.

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    Without issuing comment, the justices turned away an appeal from a former owner of a Puerto Rican winter league team who had asked the court to reconsider decades-old precedent. According to Bloomberg, the appeal aimed to overturn earlier Supreme Court rulings that grant professional baseball a unique exemption from federal antitrust statutes.

    A ruling in favor of the petitioner could have had sweeping implications for Major League Baseball’s operations. Per Bloomberg, such a decision might have opened the league to litigation over franchise moves, expansion decisions and even compensation structures for personnel.

    The Supreme Court has previously acknowledged that baseball’s exemption stands apart from other professional sports. According to Bloomberg, the high court has described the carveout as an “aberration,” underscoring its unusual nature. Baseball remains the only major US sport that benefits from immunity under federal antitrust law, a distinction critics argue gives the league outsized influence in its commercial affairs.

    The Major League Baseball Players Association had urged the justices to hear the case. In a filing, the union described the exemption as “bad for baseball, baseball fans and affected communities, as well as for all economic sectors professional baseball affects,” according to Bloomberg. However, the court opted not to revisit the issue.

    Read more: Baseball’s Century-Old Antitrust Shield Could Face New Supreme Court Test

    The high court last directly addressed baseball’s antitrust standing in 1972, when outfielder Curt Flood challenged his trade from the St. Louis Cardinals to the Philadelphia Phillies. Flood argued that the sport’s reserve system, which at the time effectively prevented players from entering free agency, ran afoul of federal antitrust law. The justices ultimately concluded they were bound by a 1922 ruling that first established baseball’s immunity, per Bloomberg.

    The latest dispute stemmed from a conflict within the six-team Liga de Beisbol Professional de Puerto Rico. Thomas J. Axon, a former owner of the Cangrejeros de Santurce club, sought to sue the league after he was removed from his ownership position. According to Bloomberg, Axon had pushed for upgrades to the team’s stadium and later threatened to relocate the club from San Juan.

    Lower courts ruled that the Supreme Court’s antitrust exemption extended to the Puerto Rican winter league, blocking Axon’s federal claims. Per Bloomberg, those decisions prompted Axon and his affiliated businesses to petition the nation’s highest court for review.

    By declining to hear the appeal in Cangrejeros de Santurce Club v. Liga de Beisbol Professional de Puerto Rico, 25-416, the Supreme Court has left intact a legal framework that has governed professional baseball for more than a century, maintaining its singular status among major American sports.

    Source: Bloomberg