Minor League Baseball to Trial Ball-Strike Challenges

Minor League Baseball will expand trials of a new rule that allows players to challenge balls and strikes using an automated ball-strike system if they think the umpire missed the call.

Bulls Begin ABS Challenge Games

ABS Challenge System at Sahlen Field Bisons

Triple-A's Ball/Strike Pitch Location Challenge System Update and a Minor League Ejection in OKC

Triple-A ABS Challenge System - Team Runs Out of Challenges, Pitcher Ejected for Arguing Strike Zone

Streaming Major League Baseball games: A how-to guide

Robot umpires and a ball/strike challenge system are coming to Triple-A in 2023 - Bleed Cubbie Blue

Minor League Baseball - Wikipedia

3 Texas Rangers observations: Multiple relief pitchers make their case for a roster spot

Report: Orioles sign Teheran to minor league deal - Blog

Robot Umpires Could Be Coming to MLB as Soon as 2024 - CNET

ABS system gets rigorous test at Futures Game