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Umpiring

Challenge System Strike Zone Challenge Procedures Controversial Calls Umpire Decisions Strike Zone Interpretation Human Element in Umpiring Force Plays Managerial Decisions Automated Ball-Strike System

Red Sox Interim Coach Runs Onto Field to Wave Runner Home

Umpires warned the coach could be ejected under MLB’s coach-box rule after the play was reviewed and the call was overturned.

One Month In, Players Say MLB’s ABS Is Tightening the Zone as Walks Climb

Pirates’ Nick Gonzales Wins ABS Challenge He Tried to Retract

ABS Challenge Tests Overturn Calls as Teams Split on Strategy Before MLB Rollout

ABS Challenge System Set for MLB Debut as Spring Data Shows Dodgers Struggling

MLB's Automated Ball-Strike System Sparks Mixed Reactions During Spring Training Tests

MLB Tests Automated Ball-Strike Challenge System During Spring Training