A New Study Shows Umpire Discrimination Against Non-White Players - Baseball ProspectusBaseball Prospectus
Umps unhappy with discipline for Kinsler, standing behind Angel Hernandez
MLB umpires wear wristbands to protest 'abusive' treatment
MLB umpires wear wristbands to protest 'abusive' treatment
Chicago Tribune
MLB stars spice up the diamond on Players Weekend
MLB umpires will wear white wristbands to protest escalating verbal attacks - NBC Sports
Wauwatosa umpire calling attention to the shortage of sports officials
Umpires at Royals-Indians game wear white wristbands as part of protest
Umpires ban together after Ian Kinsler criticism of Angel Hernandez - ESPN
Joe West wears armband to protest verbal attacks on umpires, stares down player when calling strikes outside strike zone