Beyond the grunt: Umpires mic up, and baseball changes a bit
Instant-replay talk will not go away
MLB umpires to make announcements on replay reviews for first time
10 Secrets of MLB Umpires
MLB hasn't perfected replay review, and it's hurting game's pace of play – New York Daily News
MLB Umpires To Begin Announcing Replay Decisions - MLB Trade Rumors
MLB Umpires Will Now Have to Answer For Their Sins and Announce Replay Reviews NFL Style - Crossing Broad
Breaking Down the Pros and Cons of Instant Replay in MLB, News, Scores, Highlights, Stats, and Rumors
Buck Showalter fired as New York Mets manager, Sports
MLB news: Umpires will wear mics to explain reviews in 2020