At last, MLB umpires will communicate with fans about replay
Angel Hernandez's Blown Call Must Lead to Revamping of MLB's Replay System, News, Scores, Highlights, Stats, and Rumors
It's past time for MLB to address its umpiring problem - Battery Power
MLB needs to drop the circus, do instant replay the right way
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Instant replay system used for first time during Rays game
MLB umpire shares his opinion of new rules: Ken Rosenthal's conversation with Dan Bellino - The Athletic
67-Year-Old Umpire Hospitalized After Being Hit in Head
MLB Umpires Will Now Have to Answer For Their Sins and Announce Replay Reviews NFL Style - Crossing Broad
MLB umpires will wear mics to explain review rulings to fans starting this season
MLB 2014: How Will Baseball's Instant Replay Work? - WSJ