Should MLB umpires really be wearing advertisements?

How much do MLB umpires get paid?

America's pastime has a new ritual: Frisking pitchers for sticky stuff

Joe West sets umpire record, is booed at Cardinals-White Sox game

Gibson makes final call: MLB umpire retires after 24-year career, Sports

MLB umpires wear wristbands to protest 'abusive' treatment

MLB umpire job responsibilities

MLB Fans Threaten to Boycott Over 'Robot Umpires'—'Will Ruin the Game

Major League Baseball umpire loses appeal of discrimination lawsuit

Robot umpire: Baseball edges closer to implementing automatic strike zone in major leagues

How well do umpires call balls and strikes? - Beyond the Box Score

MLB players wearing masks on the field – and some may in games

MLB umpires to announce replay review decisions to fans - ESPN

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