What do robo-umps, challenge system mean for catchers? Some coaches are concerned
A Robot Umpire? Engineering Article for Students
MLB Umpires Missed 34,294 Pitch Calls in 2018. Time for Robo-umps?, BU Today
Automated Ball/Strike System Postseason Highlights
MLB's auto zone Robo Umps debut in Triple-A : r/baseball
Automated Ball/Strike System Postseason Highlights
23 Robot Umpire Stock Photos, High-Res Pictures, and Images - Getty Images
St Paul Saints' trial run with Automated Ball/Strike System begins at CHS Field - 5 Eyewitness News
Robo umps reach Triple-A, but MLB rollout still uncertain
Robot umpires should be the future of baseball - Vox
What's the arguments against roboumps? : r/mlb
Electronic Strike Zone - Ask the Umpire - Umpire-Empire
Robo umps reach Triple-A, but MLB rollout still uncertain
The robo-umps are coming — and Seattle's Servais believes they 'will change the game …probably more than anything else' - West Hawaii Today
Robot umpires could be coming to Major League Baseball in 2024 - The Verge