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

The Bronx Pinstripes Show - Yankees Podcast, Bronx Pinstripes

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

What Is MLB's Sticky Substance Controversy? - InsideHook

The Bronx Pinstripes Show - Yankees Podcast, Bronx Pinstripes

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

Pine Tar 101: Everything you wanted to know about the sticky stuff - Newsday

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

Missing on Mound: A Dab of Discretion - The New York Times

U.S. women's hockey captain mocks Yankee pitcher busted with pine tar on his neck as she threw out first pitch at Fenway Park

MLB to step up 'sticky stuff' checks on pitchers amid crackdown on illegal foreign substances, per report

Rodger: Willie Weiss's pine tar puts a stain on Michigan