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MLB to allow anti-sign-stealing technology during 2022 season
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MLB approves use of electronic pitch calling - The Boston Globe
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Use of one-way electronic devices approved in college baseball
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Updated: Dodgers Choose Old-School Over New Technology
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MLB debuts anti-sign stealing technology l GMA
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Peraza's sliding grab, 07/22/2018
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Houston Astros sign stealing scandal - Wikipedia
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MLB Allow Using Of PitchCom System To Combat Sign Stealing
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Rob Manfred wants you to know: He doesn't hate baseball, he wants
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MLB to allow electronic pitch-signaling devices in 2022 season to
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MLB approves use of electronic pitch calling - The Boston Globe