MLB 2.0: Re-imagining baseball -- Time for robot umpires behind home plate - ESPN

Why do the MLB umpires sweep off home plate? - Quora

Ron Kulpa's abysmal zone yesterday (Ump Scorecards) : r/baseball

MLB 2.0: Re-imagining baseball -- Time for robot umpires behind home plate - ESPN

Imagining a Better 2022 MLB Season with Pitch Clocks, Shift Bans and Robot Umps, News, Scores, Highlights, Stats, and Rumors

MLB 2.0: Reimagining baseball -- Increase the wage scale for minor league players - ESPN

Robot umpires at home plate moving up to Triple-A for 2022 - NBC Sports

Robot umpires' coming to minor league, but still a while away from majors

Expected MLB rule changes for 2023 include the pitch clock, shift restriction and larger bases : r/baseball

Inside Minor League Baseball's experimental rules - Oversize bases, robot umps and moving the mound - ESPN

Major League Baseball needs to end The Ump Show

Major League Baseball expands 'robot umpire' use throughout all 30 Triple-A ballparks