Eastern League's Matsuda working to become first major league umpire from Japan
MLB: Umpire Hernandez blew calls, losing World Series job
Umpire, Clearly Going for a Record, Ejects Three Rangers in About One Minute - Bleacher Nation
MLB umpire Dale Scott: 'I wasn't intimidated by threats to out me as gay', MLB
Umpire: What Is It? and How to Become One?
Triple-A To Use Robot Umpires For 2022
MLB 2020: Umpires Joe West, Gerry Davis differ on COVID-shortened season
How Umpires Work
MLB makes history with umpire crew chief appointments - Los Angeles Times
What does an MLB home plate umpire wear for protection? - Quora
Two wrongs trying to make a right – makeup calls are common for MLB umpires, financial analysts and probably you
2021 MLB Umpire Power Rankings: Second Third of the Season - Diamond Digest