Sports were turned upside down 50 years ago Tuesday by a man who never threw or kicked a ball. A lawyer with expertise in labor relations struck down Major League Baseball’s reserve clause, which had bound players to their teams since the 1870s. No one could have predicted then that the 65-page decision issued Dec. 23, 1975 by arbitrator Peter Seitz would lead to an upheaval that made thousands of players multimillionaires. Seitz was immediately fired by MLB and later compared baseball owners to “the French barons of the 12th century."

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FILE - Abritrator Peter Seitz speaks during a news conference after he gave free agent status to pitchers Andy Messersmith and Dave McNally by voiding the reserve clause in their contracts, Dec. 23, 1975, in New York. (AP Photo/File)

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FILE - Baltimore Orioles Dave McNally delivers a pitch in the first inning of a baseball game against the New York Yankees at Shea Stadium in New York, May 24, 1974. (AP Photo/File)

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FILE - Japan's Munetaka Murakami rounds the bases after hitting a home run during the second inning of a World Baseball Classic game against the U.S., March 21, 2023, in Miami. (AP Photo/Marta Lavandier, file)

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FILE - Detroit Tigers pitcher Tarik Skubal throws during the first inning in Game 5 of baseball's American League Division Series against the Seattle Mariners, Friday, Oct. 10, 2025, in Seattle. (AP Photo/Lindsey Wasson, File)