MLB: It's time for baseball to get rid of instant replay
MLB in innovative replay review-focused Zoom partnership - Sportcal
Major League Baseball approves expanded instant replay, managers can challenge up to two calls a game – New York Daily News
MLB Fans Threaten to Boycott Over 'Robot Umpires'—'Will Ruin the Game
Major League Baseball approves expanded instant replay, managers can challenge up to two calls a game – New York Daily News
MLB umpires balance good, bad of tech advances - Global Sport Matters
MLB umpires may soon take to mic to explain replays – The Denver Post
MLB Umpires to Use On-Field Microphones to Announce Replay Review Decisions to Fans, News, Scores, Highlights, Stats, and Rumors
How Zoom will help MLB umpires make replay calls in 2023 season
Inside MLB's replay room
How MLB Umpires Learned to Explain Replays to Crowds - The New York Times
Beyond the grunt: Umpires mic up, and baseball changes a bit
MLB umpires will use microphones to announce replay review decisions