MLB umpires to announce replay decisons for 1st time - NBC Sports
MLB umpires will make in-ballpark announcements to explain replay review decisions in 2022
Umpires to wear NFL style mics to communicate instant replay review: report – New York Daily News
MLB umpires to announce replay reviews to fans – Fox Sports 640 South Florida
MLB umpires will wear mics to explain review rulings to fans starting this season
MLB umpires to announce replay reviews to fans – Fox Sports 640 South Florida
Sports Use Sensors to Make Calls
How MLB Umpires Learned to Explain Replays to Crowds - The New York Times
To The Fence Umpires At The Local Little League: Be Quiet & Watch
Hot Mic Catches MLB Umpire's NSFW Reaction to Manager Challenge - Sports Illustrated
Media Circus: How soon might we see an umpire analyst in a baseball broadcast booth? - The Athletic
MLB Umpires to Use On-Field Microphones to Announce Replay Review Decisions to Fans, News, Scores, Highlights, Stats, and Rumors
Umpires might get microphones to explain video reviews, and nothing can possiblie go wrong
Umpire concerns important for MLB amid coronavirus pandemic - Sports Illustrated
Why are MLB umpires so bad at calling inside pitches as strikes when they should be balls? - Quora