Ronald Herrera

This is a nice pitch, and Herrera knows it, as he ended up throwing it more frequently than his fastball in his one MLB appearance of 2017. He featured a 23.5% whiff rate over those three innings and figures to generate plenty of swings and misses on this offering.

If Herrera can find the strike zone over half the time with his four-seamer like he did in his minuscule 2017 sample size, he could be an interesting piece.

This pitch doesn’t feature much break or great velocity, but if he can spot it effectively to steal strikes, it could be enough to keep hitters off his fastball and allow the changeup to do the dirty work.

This breaking ball shows 12-6 movement but doesn’t have a ton of drop. For now, it looks like it’ll stay at the back end of his arsenal.