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Are Umpires Forcing Robot Umpires Into Major League Baseball? – Baseball Lifestyle 101
Robot umpires were used for the first time in independent league
Robot umpires' debut in independent Atlantic League
Invasion of the Robot Umpires
Robot umpires at home plate moving up to Triple-A for 2022
Independent baseball league to try robot umpires
Robot umpires make their professional baseball debut
We are one step closer to having 'robot umpires' - Bleed Cubbie Blue
Robot umpires already at Sugar Land Space Cowboys' ballpark could be soon heading to MLB parks - ABC13 Houston
The Wilmer Flores checked swing controversy raises the specter of robo umpires - The Washington Post
Robot umpires will continue to be used in Atlantic League for remainder of 2019 season
What is a strike in baseball? Robots, rule book and umpires view it differently
Robot umps to call balls-strikes in Triple-A in 2022