Should MLB umpires really be wearing advertisements?
CB Bucknor proves that MLB umpires are essentially employed for life
MLB umpires will have a new view this season -- on Zoom
MLB umpires wear wristbands to protest 'abusive' treatment
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Slate - What They Teach You at Umpire School
Study Finds that Old Men with Experience are Actually the Worst MLB Umpires - FanBuzz
Porter, Johnson become MLB's 2nd, 3rd Black ump crew chiefs - The San Diego Union-Tribune
Gibson makes final call: MLB umpire retires after 24-year career, Sports
Barksdale, Hoye, Iassogna and Porter will be the umpire crew chiefs for Wild Card Series
MLB Fans Rip Ángel Hernández After He Predictably Earns Bad Umpire Honor for Dreadful 2023 Season
Max Scherzer's 'sticky stuff' ejection, and MLB's rules explained
College baseball umpire apologizes for outrageously bad call, says fans were verbally and racially abusive