The Nashville Sounds help test out robotic umpires. Is this the future?
Manfred praises challenge system over fully automated strike zone
Worcester Red Sox are preparing for robotic ball-strikes system coming
Baseball's new electronic strike zone debuts in Worcester
What is a strike in baseball? Robots, rule book and umpires view it differently
MLB Commissioner Rob Manfred praises computer challenge system over full robots
Robot umpires and a ball/strike challenge system are coming to Triple-A in 2023 - Bleed Cubbie Blue
Syracuse Mets, all AAA baseball teams to use robot umpires in 2023 (report)
Automated Ball-Strike Challenge System in Action!
Automated Ball/Strike System Postseason Highlights
MLB catchers wary of looming robo umps amid rules changes - Clearwater Times