World Series ump crew youngest in years, nod to K-zone tech
MLB umpire job responsibilities
Why is MLB still using 6 umpires in postseason games? - Bleed Cubbie Blue
MLB hires first full-time umpire from Puerto Rico
Umpires Are Less Blind Than They Used To Be
MLB Official Information
Robot umpires not likely to get MLB call-up for 2024 - NBC Sports
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MLB umpires should be mic'd up to explain reviews and ejections - Bleed Cubbie Blue
Does MLB Have an Umpire Problem Sports Analytics Group at Berkeley
MLB, Official Information, Umpires
Is Pat Hoberg the Greatest MLB Umpire of This Generation? - The Forkball
MLB to host Umpire Prospect Development Camp