Joey Votto mocks the third base umpire after getting called on two check swings in a row : r/baseball
Umpire Jim Reynolds submits contender for worst ball-strike call of 2020 MLB season
District baseball: Start trumps Waite
After rough Wild Card Series ball/strike calls, higher-rated umpires up for Division Series games
Watch: Outrageous umpire puts on a show with third strike calls
Opinion Getting Beyond Balls and Strikes - The New York Times
Umpire Ron Kulpa ejects catcher A.J. Pierzynski with Yu Darvish throwing no-hitter
Worst Call Ever? Sure. Kill the Umpires? Never. - The New York Times
Play ball! Maybe. Umpires needed for baseball across Manitoba
Did Toronto Blue Jays have cause to complain about umpire Sam Holbrook?
Referee Magazine - August 2022 by Referee Magazine - Issuu
MLB Umpires Missed 34,294 Pitch Calls in 2018. Time for Robo-umps?, BU Today