How MLB Umpires Learned to Explain Replays to Crowds - The New York Times

Replay reviews are going to have to be done faster this year

MLB open to mic on umps for replay calls, the way NFL referees

Beyond the grunt: Umpires mic up, and baseball changes a bit

10 Secrets of MLB Umpires

Umpires Are Less Blind Than They Used To Be

How Umpires Work

MLB broadcasters adapting to faster pace under new rules – WWLP

MLB Umpires To Wear Microphones & Announce Replay Decisions To Fans

MLB to expand instant replay in 2014

Primer on How Expanded Instant Replay Will Work - The New York

MLB umpires get support from players in 'perfectly imperfect' game

Should MLB expand instant replay?

A look inside the most controversial building in baseball

He Catches What Umps Might Miss - The New York Times

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