Hoover has earned a spot on the Diamondbacks' Opening Day roster, Nick Piecoro of AZCentral.com reports.

EDGE Analysis

The veteran right-hander signed on as a non-roster invitee this spring and made the most of his opportunity. He fired 10.2 scoreless frames while fanning 12 batters and walking just one this spring. He'll slot in as a middle reliever out of the Diamondbacks' bullpen.