Should MLB umpires really be wearing advertisements?
MLB umpires would be better served to calm down
Today in Baseball History: Umpire John McSherry dies after collapsing on the field - NBC Sports
Why become a high school baseball umpire? You've got a game - Los Angeles Times
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Some 10 umpires reportedly to opt out of shortened MLB season - The Boston Globe
Marlborough's Jim Reynolds calls it a career after 24 years as an MLB umpire - The Boston Globe
Should MLB umpires really be wearing advertisements?
Major league umpires wear wristbands to protest 'escalating verbal attacks' from players
Can you still yell at robot umpires? Future of baseball getting mixed reviews in minors
No more 'generic Dad Nikes' - How MLB umpires -- yes, umpires! -- are stepping up their shoe game - ESPN
How can the MLB fix the poor ball and strike calls by home plate umpires? - Quora