10 Major League Baseball umpires retire in historic exodus
MLB Rule Changes: Atlantic League Tests Tweaks Meant to Save Baseball - Bloomberg
A Large Number of Veteran MLB Umpires Are Retiring - Bleacher Nation
Fact Check: Has Angel Hernandez retired? MLB's most hated umpire has only officiated one game in 2023
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Sources - 10 MLB umps retiring, most since '99 - ESPN
Uncle Mike's Musings: A Yankees Blog and More: My Top 10 Favorite Live Yankee Games
MLB will see 10 rookie umps replace veterans as position faces more changes, challenges than ever - The Athletic
Close Call Sports & Umpire Ejection Fantasy League: 07 July 2019
Ten MLB Umpires Retiring, Most Since 1999
10 MLB Umpires Retire - Baseball Says Bye to 261 Years of On-Field Major League Umpiring Experience
Ten MLB Umpires Set To Retire Ahead Of The 2023 Season
Home plate umpires are getting better. Will that hold off the robots?