MLB News: Umpires To Wear Microphones During On-Field Reviews
Umpire mortified after mic catches swear in Padres-Giants game
Umpire (baseball) - Wikipedia
Umpires to announce replay reviews to fans
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Beyond the grunt: Umpires mic up, and baseball changes a bit
MLB Umpires Reportedly May Explain Replay Decisions on Microphones
MLB umpires could soon be using mic to explain replays
Gay umpire Dale Scott's autobiography comes out a winner - Outsports
Mic'd-up umpires would make replay reviews less confusing and even
Iowa native and longtime MLB umpire Don Denkinger dies
Rob Manfred says he wants robot umps in MLB by 2024, hints at
Sebring native John Bacon adjusts as major-league umpire
Baseball news: MLB, Plate umpire Ron Kulpa hit, White Sox, Red Sox