The D-backs have two off-days on the next road trip after finishing their current three-game series against the Yanks Wednesday night -- Thursday before opening a three-game set in St. Louis and Monday before starting another three-game series against the Pirates -- giving Hale the flexibility to make the move.
The other four starters -- Zack Greinke, Shelby Miller, Patrick Corbin and Robbie Ray -- will all remain in their regular five-day slots through the weekend.
Greinke, Tuesday night's starter against the Yanks, is slated to pitch again against the Cardinals on Sunday, Hale said. De La Rosa was originally slated to start on Saturday. Ray will move up to take that spot.
Hale said the injuries were not serious.
"It's nothing that would keep [De La Rosa] out," Hale said. "If we had no days off he would pitch. But it's an opportunity to give him a little bit of break. He's obviously pitching very well, but we feel it's best for him to miss one time. He'll pitch again in 10 days."
De La Rosa, 4-4 with a 3.53 ERA and 45 strikeouts in 10 starts, is coming off his best start of the season on Sunday, when he one-hit the Giants for 6 2/3 innings, allowing a single run on Trevor Brown's homer in a 2-1 loss.
The D-backs' front office considered sending down a relief pitcher to bring up another hitter from Triple-A Reno, thus moving De La Rosa into the bullpen for the time being, but that would've defeated the purpose since he needs the rest.
Barry M. Bloom is a national reporter for MLB.com and writes an MLBlog, Boomskie on Baseball. Follow @boomskie on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.