What Is Pine Tar? Sticky Stuff in Spotlight After Yankee Ejected

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Graig Nettles “Vigilante” — Past Prime

Mariners' Hector Santiago becomes first pitcher ejected for failing sticky substances check

MLB foreign substance crack down: Six things to know about baseball's sticky situation

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Vladimir Guerrero Jr. strikes out : r/baseball

Shocking, pervasive and sticky: MLB pitchers flouting rules on doctoring baseballs

The Rivalry: Michael Pineda's ejection for pine tar adds new chapter to Yankees-Red Sox rivalry – New York Daily News

Eight Lingering Questions About MLB's Crackdown on Sticky Stuff - The Ringer

Pine Tar The Baseball Codes

Gerrit Cole reportedly yelled at Brett Gardner for making a joke about spider tack - Article - Bardown

Gerrit Cole's sticky situation: The latest chapter in ball doctoring - Pinstripe Alley