MLB Umpires Respond to Criticism About Home Plate Collision Replays, News, Scores, Highlights, Stats, and Rumors
The ESPN Daily podcast -- How to listen, episode guide and more - ESPN
MLB Umpires Association plate collision rule statement - TSN.ca
In which sport is refereeing/umpiring the most difficult? - Quora
MLB Umpires Association releases insane statement on Manny Machado's suspension
Roger Clemens Yankee Yapping
MLB to host Umpire Prospect Development Camp
Why Jim Leyland Is Right: MLB Needs to Hold Umpires More Accountable, News, Scores, Highlights, Stats, and Rumors
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Dissecting MLB's New Home Plate Collision Rules and Potential Impact on the Game, News, Scores, Highlights, Stats, and Rumors
July 2011 – Dose of Buffa
Obstruction call becomes talk of baseball world – The Mercury
My eye over yours': Ball-and-strike challenges, possibly coming to an MLB game near you - The Athletic
New M.L.B. Rule Aims to Cut Down on Collisions at the Plate - The New York Times