My brother is trying to learn the knuckleball, he’s pretty good at throwing it with no spin at all but for some reason it wont knuckle. He’s thrown it against me a couple times and it doesnt dance or even wiggle it just looks like a slow pitch with no spin or movement. Do you have any advice I can give my brother.Thanks for your help.
get him to either throw the pitch a little slower/quicker, and get a little spin can also give movement
He needs to get on top of the ball and throw it above 50 mph or even faster to make sure it moves.