Computers could soon call balls and strikes in MLB games instead

MLB Fans Threaten to Boycott Over 'Robot Umpires'—'Will Ruin the Game

How the MLB's new pitch clock could change baseball this season : NPR

COOPER: Challenge System Has Best Aspects of ABS Without the Downsides — College Baseball, MLB Draft, Prospects - Baseball America

Baseball Team Has Computer Call Balls, Strikes

Manager Ejected as Triple-A Automated Ball/Strike Zone System Stops Calling Strikes in Blowout Game

Automated strike zone: Arizona Diamondbacks minor leaguers test it out

Rise of the Robo-Umps

COOPER: Challenge System Has Best Aspects of ABS Without the Downsides — College Baseball, MLB Draft, Prospects - Baseball America

Can computers call 'em better than the umps? - The Boston Globe