MLB Umpire Uniform Patch Partner FTX Files for Bankruptcy - What Happens Now?
Column: Improving ball-strike calls is a challenge MLB needs to take on, Professional: All Sports
How well do umpires call balls and strikes? - Beyond the Box Score
MLB umpires would be better served to calm down
Who is Phil Cuzzi? MLB umpire under fire after shocking calls during Dodgers vs Twins game
Umpire mocks challenge on hot mic that ultimately gets changed
MLB umpires wear wristbands to protest 'abusive' treatment
Umpire (baseball) - Wikipedia
Statistics Show MLB Umpires Are Better Than They've Ever Been
Should MLB umpires really be wearing advertisements?