10 Worst Umpires in Major League Baseball

This call from umpire CB Bucknor might be one of the worst in history

Ángel Hernández (umpire) - Wikipedia

Controversial MLB umpire Joe West announces retirement with record in hand

Fans Crushed MLB's Worst Umpire for Making Another Laughably Bad Call

10 Worst Umpires in MLB Based on Different Seasons

Umpires Are Less Blind Than They Used To Be

Chart: Which MLB umpires performed the worst in replay reviews? – The Denver Post

Ángel Hernández (umpire) - Wikipedia

Mistake-prone MLB umpire Angel Hernandez eavesdrops his way into another bad call

2021 MLB Umpire Power Rankings: First Third of the Season - Diamond Digest

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