Can this pitching motion really end all injuries?
He claims to have invented a baseball pitching motion that will end all injuries. See for yourself. This video clip shows Jeff Sparks, the Mike Marshall student and former Tampa Devil Rays pitcher, demonstrating Marshall's Maxline Fastball, Maxline Pronation Curve, and Maxline True Screwball.
Click here for the video [Yahoo!]
Click here for Dr. Mike Marshall's pitching website
Click here to discuss this delivery with others
Click here for Dr. Mike Marshall's pitching website
Click here to discuss this delivery with others
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