What is PitchCom and why is Max Scherzer against it? - The Athletic
Mets embracing pitch communicator to prevent sign stealing
Michael Lorenzen uses PitchCom for the first time
Sign of times: MLB gives OK to electronic pitch calling - NBC Sports
MLB to allow pitchers, catchers to use anti-sign-stealing technology during regular season - ESPN
MLB is turning to an electronic pitch-calling system to fight cheating
PitchCom® Has Done More Than Stop Sign Stealing…It Has Given Pitchers Advantages They Never Had Before - Jugs Sports
Sign stealing - Wikipedia
MLB's PitchCom System Draws Mixed Reactions - The New York Times
After just four months, PitchCom is already reshaping MLB
MLB commissioner Rob Manfred - Adding pitch clock on 'priority list' for owners - ESPN
MLB's PitchCom System Draws Mixed Reactions - The New York Times