Knuckle slider

The knuckle slider is an uncommon pitch in most of baseball. It is a pitch that breaks to one side at about the same speed as a normal slider. Its intended use is to make the batter overanticipate and swing early. Also, because of the pitches breaking nature, it is very hard for the batter to make good contact. Often, these pitches will foul off or pop up.
How to Throw
Start off with a knuckle curve, then turn your wrist 90 degrees to the right (for a right-handed pitcher). There is no need to supernate or pronate your arm because is already cocked. Throw it with the same arm speed as your fastball.
 
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