A field guide to pitchers using pine tar

Pitchers have used pine tar for decades, though most players are smart enough to be discreet about the well-known practice. Several questions arise from Wednesday night’s embarrassment at Fenway Park

Baseball has a sticky situation on its hands

Does pine tar increase your spin rate? And are the Astros all over

MLB pitchers upset as umpires check them for 'sticky stuff

Sticky stuff' crackdown in MLB: What is cheating?

April 24, 2014

The Secrets of Pitching's Outlaws - The New York Times

Yankees Pitcher Suspended Over 'Foreign Substance' On Neck

Why Do Baseball Players Use Pine Tar? Here's the Reason

Pine Tar Redux – Not For Nothin', Lets Take a Look Back

Mets pitcher slams MLB over problem gripping the baseball

Pine Tar in Baseball: What It Does, Using It & Rules