MLB Rule Changes: Takeaways on pitch clock, bigger bases, more - ESPN
MLB Umpires Have Best Statistical Season in History - Stadium
Umpire Angel Hernandez alleges MLB manipulated reviews to make minorities look bad - The Athletic
Robot umpires: New baseball innovation points towards society's demise - Sports Illustrated
An analysis of nearly 4 million pitches shows just how many mistakes umpires make
Gay MLB umpire talks new book, D.C. Pride Night Out appearance
Cardinals have received the worst balls and strikes calls from umpires, stats show
Joe West and the 5 Most Shameless Self-Promoting Umpires in MLB, News, Scores, Highlights, Stats, and Rumors
MLB 2020: Umpires Joe West, Gerry Davis differ on COVID-shortened season
Best power-speed combo seasons in MLB history
These MLB umpires have the worst strike zones - The Washington Post
Umpires to announce replay reviews to fans
Play Ball: Pioneer Football's Ted Barrett Brings Hayward Mentality to Major League Baseball - Cal State East Bay University Athletics
Study Finds that Old Men with Experience are Actually the Worst MLB Umpires - FanBuzz