MLB approves electronic pitch calling
MLB gives OK to electronic pitch calling
Prep baseball/softball: Coaches intrigued by idea of electronic pitch calling, Baseball
Mattress Mack first pitch canceled: MLB CRO says Mattress Firm wasn't involved in decision
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Like 'playing a video game': Phillies seeing the value in new tech that transmits pitch signals
MLB approves use of PitchCom technology
MLB Umpires Missed 34,294 Ball-Strike Calls in 2018. Bring on Robo-umps?, Bostonia
Sign of times: Major League Baseball gives OK to electronic pitch calling
Arizona Diamondbacks pitchers embracing new PitchCom technology
Major League Baseball approves electronic pitch calling in major overhaul
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No more sign stealing? Electronic pitch calling coming to big league ballparks - Federal Baseball
Arizona Fall League To Use Newly Approved MLB Rules — College Baseball, MLB Draft, Prospects - Baseball America
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