Once upon a time, Matt Harvey was good. Awesome, in fact! Then the Mets overused him. Harvey suffered through Tommy John surgery, thoracic outlet syndrome, and just general ineffectiveness before the former draft day darling was essentially forgotten this year. Right now, the erstwhile Dark Knight of Gotham is being drafted outside the top 120 pitchers and top 400 players. That’s for good reason; last year’s 4.94 ERA and 4.57 FIP don’t inspire much confidence. But it also makes the Dark Knight someone who makes a remarkably good sleeper, especially in a traditionally starting pitching class. Harvey might have the most upside of any undrafted pitcher this year – because we know what he can do at his best, and that’s a top-5 pitcher in baseball.