Count on pitchers continuing to use pine tar - ESPN
May, 2021
George Brett Pine Tar
MLB warns teams that pitchers caught doctoring balls will get 10-game bans beginning June 21
A Yankees Pitcher's Hand Revives Arguments Over Pine Tar - The New York Times
Pine Tar 101: Everything you wanted to know about the sticky stuff - Newsday
Michael Pineda suspended 60 games after PED violation
Today in Nationals History. Hey Nationals Fans! Check out this post…, by Nationals Communications
Tar for the course: Yankees pitcher Michael Pineda busted for using foreign substance, MLB