After a perfect eighth inning Wednesday, Hernandez has retired all 14 batters that he's faced so far this season.
Hernandez has been hard to hit both in the majors on the minors, but in 33 innings at Double-A Pensacola he has walked 20 batters, suggesting that despite his great debut, there's still more refining necessary. Nonetheless, he has a live enough arm that it's not hard to project he could be helpful in a late-inning relief role.