Should MLB umpires really be wearing advertisements?

Are Baseball Umpires Wrong As Often As Fans Think They Are? Yes, One Study Says

Close Call Sports & Umpire Ejection Fantasy League: MLB Debuts Umpire Uniform Ads During All-Star Game

The hypocrisy of umpires complaining about players is obvious in their empty wristband protest

There's now scientific proof that MLB umpires just want to get the hell out of there quickly, This is the Loop

Dan Bellino, MLB umpire who ejected Madison Bumgarner, apologizes for behavior

MLB Umps Wear White Wristbands to Protest Increased Verbal Attacks by Players, News, Scores, Highlights, Stats, and Rumors

Can computers call a better game than human umpires? Major League Baseball wants to find out

Umpire Substance Checks Put Pitchers in Awkward Positions - The New York Times

Major league umpires wear wristbands to protest 'escalating verbal attacks' from players

Center Field on Fire: An Umpire's Life with Pine tar Bats, Spitballs, and Corked Personalities: 9781572435698: Phillips, Dave, Rains, Rob, Costas, Bob: Books

In Defense of Umpires: Why Complaints About MLB's 'Ump Show' Problem Miss the Mark, News, Scores, Highlights, Stats, and Rumors

CB Bucknor proves that MLB umpires are essentially employed for life

Why is MLB still using 6 umpires in postseason games? - Bleed Cubbie Blue