Per MLB Pipeline
Scouting grades: Fastball: 65 | Curveball: 65 | Changeup: 55 | Control: 45 | Overall: 55
A native of Haiti who came to the United States at age six and didn't really start playing baseball seriously until he was 11, Toussaint might have been the most athletic high school pitcher in the 2014 Draft class. He also might have as much, if not more, upside potential as any in that crop.
Toussaint's fastball will sit in the low 90s with a lot of movement, and he can reach back for more at times. His mid-70s curveball was one of the best breaking pitches in the Class of 2014, one that had so much break that high school pitchers had difficulty holding onto it. He's shown feel for a changeup and a willingness to throw it, though it's not as effective as his first two options. Command has been an issue for Toussaint, both in high school and during his pro debut, but his athleticism - he was one of the better hitters in the Florida high school ranks - should allow him to learn to repeat his delivery more consistently.
It might take Toussaint a while to get there, but the payoff could be huge. With patience, the D-backs could have another potential frontline starting pitcher in their system.