Selected in the fifth round of last summer's Draft, Hess has spent all season in Advanced ball and stands at 9-4 with a 3.58 ERA in 25 starts. He has not lost in his past 12 outings, a run that began on June 27.
In fact, Hess has not allowed more than two earned runs in any start since giving up six to Carolina on June 15.
Alex M. Smith is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.