MLB umpires will start announcing replay review decisions to
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MLB umpires to explain replay reviews for the first time - AS USA
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MLB Umpires to Use On-Field Microphones to Announce Replay Review
Beyond the grunt: Umpires mic up, and baseball changes a bit - St
MLB umpires to announce replay decisions to fans for 1st time
When the Umpire Says a Little More Than He Meant to on a Hot Mic
MLB umpires could soon be using mic to explain replays
MLB Umpires Might Get Microphones To Explain Replay Reviews
Close Call Sports & Umpire Ejection Fantasy League: MLB Umpire