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A spitball is an illegal baseball pitch in which the ball has been altered by the application of saliva, petroleum jelly, or some other foreign substance. 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'', ''vaseline ball'' (because originally, Vaseline was used to give the ball a little more break), and ''emery ball'', although technically, an ''emery ball'' is one where the ball has been abraded in much the same way that the original ''cut ball'' had been physically cut (an ''emery ball'' is also known as a ''scuff ball''). ==History== The invention of the spitball has been popularly credited to a number of individuals, among them Elmer Stricklett and Frank Corridon. Numerous accounts, however, refer to different players experimenting with versions of the spitball throughout the latter half of the 19th century, and it remains unlikely that any one individual "invented" the spitball. Ed Walsh, however, is certainly responsible for popularizing it. Walsh dominated the American League from 1906–1912 primarily on the strength of his spitball, and pitchers around the league soon copied his spitball or invented their own trick pitch. The dramatic increase in the popularity of "freak deliveries" led to a great deal of controversy throughout the 1910s regarding the abolition of the spitball and related pitches. In his autobiography, Ty Cobb wrote that such "freak pitches () were outlawed when the owners greedily sold out to home runs." In addition, there were serious issues with the spitball, as a variation on the standard spitball called for the pitcher to smear the entire surface of the normally white ball with a mixture of tobacco spittle and dirt or mud in order to stain it the same deep brown color as the infield, making it nearly impossible for batters to see or avoid in low-light conditions. In August 1920, Ray Chapman was killed when he was struck in the temple by a spitball thrown by pitcher Carl Mays during a poorly lit game. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「spitball」の詳細全文を読む スポンサード リンク
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