Ten MLB umpires are 'set to retire at the end of the month' - the LARGEST turnover since 1999

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10 MLB Umpires Retire - Baseball Says Bye to 261 Years of On-Field Major League Umpiring Experience

MLB umpire retirements, promotions

Ten MLB umpires are 'set to retire at the end of the month' - the LARGEST turnover since 1999

MLB Twitter reacts to mass retirement of major league umpires: Don't let the door hit you on the way out, Wish Angel Hernandez was on this list

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