Tigers' manager Brad Ausmus livid about 'petty' umpire protest - The Athletic
MLB umpires wear wristbands to protest 'abusive' treatment
Umpire Angel Hernandez in ALDS Game 4 spotlight - The Boston Globe
How MLB umpire grades really work, and what it means for the future of balls and strikes - ESPN
MLB Umpires Missed 34,294 Pitch Calls in 2018. Time for Robo-umps?, BU Today
MLB umpires protesting 'escalating verbal attacks
MLB umpires remove white wristbands
MLB umpires protest 'escalating verbal attacks' from players with white wristbands - The Washington Post
MLB Umpires Protest Verbal Abuse - Gaslamp Ball
Ian Kinsler Reportedly Fined $10,000 over Critical Angel Hernandez Comments, News, Scores, Highlights, Stats, and Rumors
Close Call Sports & Umpire Ejection Fantasy League: 12 August 2018
MLB umpires wear wristbands to protest 'abusive' treatment
MLB Umpires Protest Verbal Abuse - Gaslamp Ball
ATLANTIC LEAGUE TO DONATE AUTOMATED BALL-STRIKE ARTIFACTS TO NATIONAL BASEBALL HALL OF FAME AND MUSEUM
MLB umpires wear white wristbands against player abuse