De La Rosa pitched seven innings, giving up two runs, one earned, on just five hits and striking out six. The D-backs right-hander has allowed just one earned run over his last 15 innings and has won consecutive starts for the first time since his first two outings of the season.
"He did a great job, had great stuff tonight," D-backs manager Chip Hale said of De La Rosa. "I think when you face him you have to be aggressive. That's the truth, for me, because he's got such good stuff."
Shields gave up four runs in six innings of work.