Computers could soon call balls and strikes in MLB games instead of Joe West and other umpires
Robot umpires debut in independent Atlantic League
How Astros, MLB may be on verge of solving umpire problem - SportsMap
Which happens more often in MLB games? Balls miscalled as strikes or vice versa? - Quora
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Umpire (baseball) - Wikipedia
Angel Hernandez, Robots, & How to Fix MLB Umpiring Forever
How can the MLB fix the poor ball and strike calls by home plate umpires? - Quora
Computer to call balls and strikes in minor league
Joe West prepared to stand alone among umpires - Chicago Sun-Times
Why are there still umpires in Major League Baseball? Why can't it all be automated? - Quora
MLB Umpires Missed 34,294 Pitch Calls in 2018. Time for Robo-umps?, BU Today
World Series ump crew youngest in years
Invasion of the Robot Umpires
Robot umpire: Baseball edges closer to implementing automatic strike zone in major leagues : r/baseball
