MLB's next challenge system? All-Stars weigh in on possibility of adding check-swing replay reviews

If you thought there was no possible way Major League Baseball could squeeze in more opportunities to challenge something ...

MORE Robo-Umps Coming To MLB.._ New Check-Swing Challenge System

The Next Frontier of Robo-Umps is Here! Just when baseball fans were getting used to the newly implemented Automated Ball-Strike (ABS) Challenge System in the Major Leagues, MLB is already testing its ...
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MLB: Guinea pig in Oklahoma! Kim Hye-seong debuts the 'check-swing challenge'

Life in the Minor Leagues is always full of surprises, and Kim Hye-seong, infielder for the Los Angeles Dodgers, just ran into one of the wildest yet. After being sent down to Triple-A Oklahoma City ...
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MLB To Test Check-Swing Rule In Triple-A

MLB had tested this rule in the Low-A Florida State League and the Arizona Fall League last year. A check-swing challenge system requires an objective cutoff point. The threshold is whether the bat ...