Burleigh Arland Grimes was an American professional baseball player and manager, and the last pitcher officially permitted to throw the spitball. Grimes made the most of this advantage, as well as his unshaven, menacing presence on the mound, which earned him the nickname "Ol' Stubblebeard." He won 270 MLB games, pitched in four World Series over the course of his 19-year career, and was elected to the Baseball Hall of Fame in 1964. A decade earlier, he had been inducted into the Wisconsin Athletic Hall of Fame.

A spitball is an illegal baseball pitch in which the ball has been altered by the application of a foreign substance such as saliva or petroleum jelly. This technique alters the wind resistance and weight on one side of the ball, causing it to move in an atypical manner. It may also cause the ball to "slip" out of the pitcher's fingers without the usual spin that accompanies a pitch. In this sense, a spitball can be thought of as a fastball with knuckleball action. Alternative names for the spitball are spitter, mud ball, shine ball, supersinker, or vaseline ball. A spitball technically differs from an emery ball, in which the surface of the ball is cut or abraded. Saliva or Vaseline smooths the baseball, while the emery paper roughens it. The general term for altering the ball in any way is doctoring.