Are there different umpires for the American and National League? - Quora
Are MLB umpires ruining the sport of baseball? - Quora
How do baseball players view professional umpires? Do they see them as professionals dedicated to upholding the rules of the sport, or as biased, non-athletic observers? - Quora
MLB Umpires Missed 34,294 Pitch Calls in 2018. Time for Robo-umps?, BU Today
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Baseball umpires (the umps that call balls and strikes) should they be positioned behind the pitcher or behind the catcher? - Quora
Has baseball expanded the strike zone this year without changing the rules? - Quora
In 1973, new fashion for baseball umpires was strictly a judgment call - The Boston Globe
As economy recovers, fewer Las Vegas-area referees are left to face parents' wrath, Summerlin/Centennial Hills
New York Metro Parents
I'm a new umpire. What do I need to know about umpire equipment/uniform? - Quora
Fewer left-handed pitchers in baseball
Major league umpires wear wristbands to protest 'escalating verbal attacks' from players
My Syrian Diary: Part 32 — Syria Deeply