If De La Rosa does not experience any setbacks he should see action in September.
"I'm going to sit with [pitching coach Mike Butcher] and talk about with all the guys that we're going to have in September how we're going to work this," D-backs manager Chip Hale said. "With 70 pitches, would he start and somebody piggyback him? Or would somebody else start and he piggyback them? I think with his arm issues he'd probably be the guy that would start at this point, but we'll have to figure all that out."
Steve Gilbert has covered the D-backs for MLB.com since 2001. Follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.