— 5 IP, 6 H, 3 R, 2 ER, 3 BB, 2 K —
Quick sum-up of what I saw: At age 19, Michael Santos has amazed scouts with his consistency in the Arizona League. His innings limit is five, and he's finished the fifth inning in all eight of his starts while maintaining a 1.80 ERA and an even 1.00 WHIP (30 hits, 10 walks in 40 innings).
He features four pitches: Four-seam fastball, two-seam fastball, changeup, and curveball. Both fastballs came in anywhere from 90-93 when I saw him, and scouts confirmed that that is where he typically sits. To my eye, his command of the fastball is advanced for his age, as are the movement and command of his changeup and curveball. He was getting swing-throughs on all four pitches, but most notably the big, sweeping curveball that comes in roughly 20 miles per hour slower than his fastball at 72-76. The changeup, which he started throwing with better precision lower in the zone towards the end of his start, is a low-80s offering that shows decent late bite.
If the Giants progress Santos through the system like Keury Mella and Luis Ysla, he should be in Augusta as a 20-year-old next season. I also think he has a legitimate chance to be a top-20 prospect before the end of 2015. Right now, that curveball is a plus pitch — especially with the way he commands it — and the fastball and changeup are close.