In the case of Federal Baseball Club v. National League, decided in 1922, the U.S. Supreme Court addressed whether professional baseball was subject to federal antitrust laws. The Federal Baseball Club, a team in the Federal League, claimed that the National League and American League conspired to monopolize professional baseball, harming competition. The Supreme Court ruled that baseball was not considered interstate commerce, thus exempting it from antitrust regulations. The decision established a precedent that allowed baseball to operate without the same legal constraints faced by other professional sports, significantly impacting the business of baseball in the United States.