Corniell struck out six and gave up one earned run on three hits and one walk in four innings Tuesday in his first start for High-A Hickory.
The 6-foot-3 righty, who turned 20 years old Thursday, logged a 2.70 ERA, 0.92 WHIP and 56 strikeouts in 43.1 innings with Single-A Down East. Corniell has a projectable frame and there's a chance his stuff continues to improve as he adds strength in the coming years.