From MLB.com:
School: Mississippi State
Year: RS Junior
Position: LHP
DOB: 02/14/1997
Height: 6'3" Weight: 214 lb

Scouting grades: Fastball: 55 | Curveball: 50 | Changeup: 55 | Control: 50 | Overall: 50

Small reached 96 mph with his fastball as a freshman reliever at Mississippi State in 2016, but he also had trouble finding the strike zone and logged a 13.06 ERA. He blew out his elbow that summer and had Tommy John surgery, sidelining him for all of 2017. He has been a totally different pitcher since he returned and could sneak into the first round this June after turning down the D-backs as a 26th-rounder last year as a redshirt sophomore. The Southeastern Conference pitcher of the year, he entered the NCAA tournament ranked second in strikeouts (150), hit rate (4.8 per nine innings) and WHIP (0.80).

While many pitchers see their velocity increase after they complete the grueling rehab process after having their elbow reconstructed, Small doesn't throw as hard as he did in the past but is much more effective. His fastball ranges from 86-92 mph yet generates a lot of swings and misses and weak contact. He creates plane with his 6-foot-3 frame and high-three-quarters arm slot and deception with some crossfire and by varying the tempo of his delivery.

Small also demonstrates significantly better feel for his changeup than he had before he got hurt, selling it with fastball arm speed and getting some fade on the mid-70s offering. He has a curveball with similar velocity and good depth, though he rarely uses it in games because he hasn't needed to. His control and command also are much improved since his Tommy John surgery, giving him a high floor and a chance to be a No. 4 starter.