Alcantara, 20, has a 4.55 ERA and 71:29 K:BB in 55.1 innings at Low-A.
The strikeouts are notable, particularly since Alcantara struck out fewer than one batter per inning in rookie ball just one season ago. He's still walking too many batters, which has gotten him into some trouble this year, but the strikeout potential makes him a prospect to keep on the radar.