MLB news: Umpires will wear mics to explain reviews in 2020
MLB ump show might explain replay calls to fans and teams, like
MLB umpires to announce replay decisions for 1st time
Report: MLB umps will use mics to relay results of reviews in 2020
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Umpires might get microphones to explain video reviews, and
MLB umpires to announce replay review decisions to fans - ESPN
Beyond the grunt: Umpires mic up, and baseball changes a bit
MLB umpires to make announcements on replay reviews for first time
MLB umpires to explain replay reviews for the first time - AS USA
We're About to Get More Transparency on Replay Reviews This Year
MLB umpires hot mic: Hot mic hilarity: MLB umpire ridicules
Baseball instant replay: New system, new strategies – The Mercury News
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