MLB umpires will use microphones to announce replay review
MLB facing shocking & concerning umpire situation
A new crew has Williamstown's Chris Conroy excited for umpiring in MLB this season, Local Sports
MLB umpires will wear microphones to explain review calls to fans in 2020 season, report says
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Dodgers news: MLB's first umpire announcement for replay reviews - True Blue LA
MLB umpires will start announcing replay review decisions to ballpark crowds
New Wireless Audio Lets MLB Umpires Make All the Calls Very Loud and Clear
MLB umpires to announce replay decisions for 1st time
MLB umpires to announce replay decisions to fans for 1st time
Mic'd-up umpires would make replay reviews less confusing and even provide some comedy – New York Daily News
MLB umpires could soon be using mic to explain replays
