Should MLB umpires really be wearing advertisements?
Marlborough's Jim Reynolds calls it a career after 24 years as an MLB umpire - The Boston Globe
MLB umpire Malachi Moore a trailblazer from Compton Youth Academy
How well do umpires call balls and strikes? - Beyond the Box Score
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Explaining the FTX Patch worn by MLB Umpires – SportsLogos.Net News
Slate - What They Teach You at Umpire School
MLB umpires wear wristbands to protest 'abusive' treatment
Study Finds that Old Men with Experience are Actually the Worst MLB Umpires - FanBuzz
Why is MLB still using 6 umpires in postseason games? - Bleed Cubbie Blue
Owensboro native and MLB umpire still in hospital after being struck in the head by baseball
How much do MLB umpires get paid?
Minor League Umpires To Receive Significant Pay Raise In 2022 — College Baseball, MLB Draft, Prospects - Baseball America
Umpire C.B. Bucknor ends Brewers game with missed strike three
Umpires to announce replay reviews to fans