In the wake of yesterday’s Michael Pineda pine tar firestorm:
There’s an entire chapter in The Baseball Codes devoted to cheating, including a rundown of the various substances pitchers use to alter the flight path of the ball. (Plus: titillating stories of said substances in action!)
For an online primer that’s both free and doesn’t require a trip to the bookstore, you can turn to yesterday’s Deadspin account by ex-hurler Dirk Hayhurst (who has appeared in these pages previously). There’s just no getting away from this stuff.