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Mariners' Hector Santiago first pitcher ejected for violating sticky substance protocols - The Boston Globe
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Mariners Moose Tracks, 7/19/21: Hector Santiago, Mariners draft signings, Starling Marte, Liam Castellanos - Lookout Landing
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Resolution on Mariners reliever Hector Santiago's appeal for a 'foreign substance' coming Wednesday | The Seattle Times
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Seattle Mariners' Hector Santiago first player to be ejected amid MLB's crackdown; veteran reliever says 'all I used was rosin'
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Mariners' Hector Santiago Could Be The First Player Suspended With MLB's New Sticky Substance Enforcement
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