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

Slippery Slope: Pine Tar and Other Obvious Ways Athletes 'Cheat' - ABC News

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

Pitchers are straight-up cheating, and MLB might kinda-sorta do something about it, This is the Loop

Should we care if pitchers use pine tar?, Bronx Pinstripes

Pineda gets 10-game suspension for pine tar on neck

Chew your gum, but don't share your pine tar: MLB issues 101-page guide on safety rules - The Boston Globe

Just Get Rid of Pine Tar Altogether! - Eutaw Street Report

As Pine Tar Enforcement Comes To The Fore, (Alleged) Pine Tar Pitchers Struggle

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

What Is Pine Tar And Why Is It Illegal In Baseball?

Hoornstra: The most wholesome baseball sticky-stuff story you'll ever read – Orange County Register

Interprets baseball's rules, explains the history behind each decision, and describes how the game has shaped the rules

Baseball by the Rules: Pine Tar, Spitballs, and Midgets

A Yankees Pitcher's Hand Revives Arguments Over Pine Tar - The New York Times

Have you ever wondered what's up with all that gunk on Pablo Sandoval's helmet?