PETA strikes out with suggestion that MLB drop 'bullpen

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PETA strikes out with suggestion that MLB drop 'bullpen

PETA urges MLB to stop using the word 'bullpen

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PETA Calls On MLB to Rename 'Bullpen' to 'Arm Barn' - Sports

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PETA's Call to the 'Bullpen': Rename Outdated Term 'Arm Barn

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FanGraphs Baseball, Page 2

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