A particular final caution and it relates to youth pitchers. Some knuckleball may be about the most being dressed in pitches with anyones arm and should not just be unveiled until age 13 with the very earliest. Coaches might routinely be asked by players younger than that how to throw a knuckleball, plus they should just about all be clear approximately its long-term pitfalls and discourage it's use. how to throw a knuckleball throwing a knuckleball