Here is what Mayo posted ...
A product of Florida power American Heritage -- the same high school that produced Eric Hosmer and Deven Marrero among other recent big leaguers -- Barriera was the top left-handed pitcher of any kind on our Draft Top 250. He has three above-average pitches. His fastball goes up to 96, and he possesses a low-80s slider and an outstanding changeup, all of which he can command very well, especially for a high schooler. – Mayo