MLB makes history by naming its first black and Latino-born umpire crew chiefs - CNN
An MLB umpire tweeted he would buy an assault rifle over impeachment inquiry - CNN
10 Tips to Move Up the College Baseball Ranks - Referee.com
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MLB appoints 1st black umpire crew chief
MLB umpire apologizes for #MAGA tweet about gun and Trump critics
Umpire Joe West leaves game after hit by flying baseball bat – The Denver Post
An analysis of nearly 4 million pitches shows just how many mistakes umpires make
Analysis of 4 Million Pitches Reveals Umps Really Do Suck at Calling Strikes | Discover Magazine
Todd Tichenor - Wikipedia
Umpire (baseball) - Wikipedia
MLB umpires wear wristbands to protest 'abusive' treatment
AP sources: MLB umpire tests positive for virus, crews shift - ABC News
MLB umpires would be better served to calm down - CBSSports.com
Baseball Referee Stern Look Hands On Stock Photo (Edit Now) 124340506
Umpire (baseball) - Wikipedia
What is the Salary of an MLB Umpire?
Research: Do We Shy Away From Pivotal Calls? | Stanford Graduate School of Business
Are Baseball Umpires Racist? - TIME
The 6 Oldest Umpires Working in MLB in 2019
MLB tests 'robot umpires' for calling pitches - YouTube
MLB to Experiment with Robot Umpires, More Rule Changes in Atlantic League | Bleacher Report | Latest News, Videos and Highlights
