MLB umpires to announce replay decisions at stadiums this season
Umpires might get microphones to explain video reviews, and
Percentage of successful MLB video reviews drops slightly. Marlins
MLB umpires will make in-ballpark announcements to explain replay
New Wireless Audio Lets MLB Umpires Make All the Calls Very Loud
MLB Umpires to Use On-Field Microphones to Announce Replay Review
MLB - Starting this season, Major League umpires will
MLB umpires to make announcements on replay reviews for first time
Umpires to announce replay reviews to fans
Media Circus: How soon might we see an umpire analyst in a
Sports Use Sensors to Make Calls
Hot Mic Catches MLB Umpire's NSFW Reaction to Manager Challenge