Why Pitchers Use Pine Tar

MLB cracking down on pitchers using foreign substances

Pine tar probably used 'more than you think

Phish.Net: Yankee Pitcher using pine tar or?

Count on pitchers continuing to use pine tar - ESPN

5 TRICKS To Using PINE TAR That The PROS Don't Want You To Know!

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

Buster Olney: Has baseball's pine tar problem gotten worse? - ESPN - Buster Olney Blog- ESPN

Trevor Bauer explains what 70 percent of MLB pitchers are doing that's 'a bigger advantage than steroids

Buster Olney: Has baseball's pine tar problem gotten worse? - ESPN - Buster Olney Blog- ESPN

Astros' Lance McCullers gives closer look at cleats in effort to shut down cheating allegations - ABC13 Houston

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