Nick Burdi

Burdi ranks as the hardest thrower in college baseball, making him a first-round candidate despite being limited to a relief role. Drafted in the 24th round by the Twins out of high school in 2011, Burdi has pitched out of Louisville's bullpen for three years, becoming the Cardinals' all-time saves leader. He does it with pure power. He's athletic with tremendous arm strength and runs his fastball into the 96-100 mph range consistently, maintaining that velocity over two- and three-inning outings. He has reached up to 103, and his fastball earns 80 grades from most scouts on the 20-80 scale. Burdi's slider gives him a second premium pitch, reaching as high as 92-93 mph and sitting 87-90 with depth. One area scout called it "hard, late and unfair." Scouts don't consider his delivery and mentality suited for starting. He has learned to repeat his delivery better and should have enough control to close, and he could reach the major leagues in short order.