How to throw a knuckleball

So you want to throw a knuckleball? The whole idea is to make that ball come out of your hand taking the spin off of the ball. That's what a knuckleballer's intent is. Because the resistance of the air will handle the movement. Fingernails digging into the ball. I know Tom Candiotti used to get manicures all the time.

The thing I learned right away is it's more important to be in the right position. You have to be so precise.'' Which, Wallace said, underscores pitching as a whole.

''It's the constant struggle for perfection,'' he said, ''with the realization that you'll never achieve it.