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Story summary
- Major League Baseball (MLB) will expand robot umpire trials for checked swing calls to Triple-A, starting May 5, with a 45-degree threshold.
- The initiative adds experimental changes: second base fits inside the infield, reducing pitcher disengagements from two to one per plate appearance, and tighter pitch clock rules.
- Previous tests showed a 3% reduction in strikeout rates, suggesting potential benefits.
- Further evaluations will guide adaptations across all levels of play.
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