By A Mystery Man Writer
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
Invasion of the Robot Umpires
Bulls Begin ABS Challenge Games
Explaining ball-strike challenge system
Ball-Strike Challenges Among Experimental Rule Changes In Minors In 2022 — College Baseball, MLB Draft, Prospects - Baseball America
Minor League Salaries Will Double Under New Deal - The New York Times
Watch how minor league strike zone challenge system works
The Automated Strike Zone Is Slightly Different At Triple-A in 2023 — College Baseball, MLB Draft, Prospects - Baseball America
They're testing a ball/strike challenge system in the minor leagues - Bleed Cubbie Blue
WHEN TOPPS HAD (BASE)BALLS!: MINOR LEAGUE DAYS- ORLANDO CEPEDA
Angels call up 2023 first-round draft pick Nolan Schanuel - Los Angeles Times
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