MLB umpires to use microphones to announce replay review decisions - Sports Illustrated
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At last, MLB umpires will communicate with fans about replay
James Hoye to head ALCS umpires and Dan Iassogna in charge of NLCS
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MLB Umpires To Wear Microphones & Announce Replay Decisions To Fans
Sources: Similar to NFL officials, MLB umpires could get mic'd up
At last, MLB umpires will communicate with fans about replay
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