What is a Change Up, and WHY is it important?
Why throw one?-
When to throw one?-
Mike Nikorak a 1st round draft pick in the 2015 MLB draft by the Colorado Rockies tells us first hand the importance ..
A change up is a secondary pitch used to throw off the hitter's timing.
If and when a hitter seems to be timing up your fastball then mixing up pitches...