Santucci's 3-pitch mix is mostly just 50 and 55's, but he's left-handed and can throw all of them for strikes in any count. His changeup plays like a splitter of sorts with low spin efficiency and late life, really looks like a plus pitch at times but it's the pitch he has the least feel for. His slider is fairly standard at 81-84, his four-seam performs well and misses bats at 91-96. There's reliever risk because of the high walk rates but they're bound to drop this season and he could go on the first day of the draft.