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Step 5: Curveball

Picture of Curveball
Start at this grip, Then twist around to make your palm point upward. If you are under 25 you could seriously injure your arm throwing this a bunch of times.
 
mbrinkm6 years ago
You should NEVER twist or snap your hand when throwing any pitch, including a curveball. That increases the stress on your elbow and shoulder and leads to significant injury issues. A proper curveball is accomplished with grip and angle of the hand position during a normal throwing motion. Please refer to any book or video by Tom House on this issue