De La Rosa agreed to a one-year contract with the Diamondbacks on Friday, avoiding arbitration.
The 26-year-old righty held up well physically in 2015, reaching the 30-start milestone for the first time in his career, but his production was average at best with a 4.67 ERA and 1.357 WHIP. He'll likely slot in as a back-of-the-rotation starter this season with Arizona after the additions of Zack Greinke and Shelby Miller this offseason.