Does a pitcher's foot still have to be on the rubber when releasing the ball? If so, how can Carter Capps pitching be legal?
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Types of Pitches
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Does a pitcher's foot still have to be on the rubber when releasing the ball? If so, how can Carter Capps pitching be legal?
Trevor Bauer Finds Himself at Center of Ball-Doctoring Inquiry - The New York Times
List of knuckleball pitchers - Wikipedia
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Meet the MLB pitchers keeping the dying art of the knuckleball alive - Sports Illustrated
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The Knuckleball Can Devastate, So Why Don't All Pitchers Throw It? : The Two-Way : NPR
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Pitcher - Wikipedia
