Blake Walston

When evaluators describe a pitcher as projectable, Walston, an athletic 6-foot-5, 175-pound southpaw, is the archetype. The expectation is that his stuff and his command will greatly improve with a combination of pro instruction, strength training and natural physical maturation. Selected with the No. 26 overall pick, Walston was touching 93 mph as an amateur and hit 94 mph in the AZL after signing for $2.45 million. His curveball already flashes plus and he is working on a solid third-pitch changeup. Considering he won't turn 19 until late June, he is well ahead of schedule. A few years down the road, we could see Walston getting up over 200 pounds with a mid-90s fastball that he pairs with a plus-plus curveball and above-average changeup. If that happens, he could be at least a No. 2 starter. If he struggles to add weight and velocity, he could still slot into the middle of a big-league rotation.