DeSclafani changed his grip on his curveball late last season and saw a big improvement in his strikeout rate as a result, and he's been successfully refining the pitch this spring, the Cincinnati Enquirer reports.
DeSclafani used to throw his curveball just 3-5 percent of the time, but over the last two months it was up to nearly 17 percent. He believes that the pitch will help him better attack left-handers, against whom he's struggled in the past.