Zack Greinke loses duel with Rockies' Jorge De La Rosa

LOS ANGELES -- The pitching matchup tilted heavily in favor of the Los Angeles Dodgers heading into Saturday night. Warming up in one bullpen was Dodgers starter Zack Greinke, a former Cy Young winner who had won his last 10 decisions and had been especially tough on his NL West foes. On the other side was Colorado Rockies left-hander Jorge De La Rosa, who came in with an ERA just below 10 and a history of poor performances at Dodger Stadium.

So much for comparisons. De La Rosa was nearly perfect for 7 1/3 innings before a groin injury forced him out of the game, but by then the Rockies were well on their way to a 7-1 victory, their second in the last three games following an 11-game losing streak.

"He's always been tough," Dodgers manager Don Mattingly said of De La Rosa. "He's a tough guy to get ready for because he's kind of wild in the strike zone."

De La Rosa (1-2) recorded 19 straight outs after the first two batters reached base for the Dodgers. He allowed two hits overall and didn't walk a batter, just six days after surrendering five hits and six walks in four innings of a 9-5 loss to the visiting Dodgers.

"He's been a little wild so far this year, so obviously he was feeling pretty good today," said Greinke, who fell to 5-1 on the season.

Greinke made just one costly mistake himself, grooving a 2-0 fastball to Carlos Gonzalez in the first inning, which he deposited in the center-field seats for a 1-0 lead.

"It was early in the game and [Gonzalez] is one of the best, but he hasn't been doing as good this year, so I didn't want to nibble around too much that early," Greinke said. "It wasn't a good idea. It wasn't a terrible pitch, but it wasn't a good one."

Greinke said the at-bat that probably did more damage was Corey Dickerson's to lead off the second, when he fouled off several pitches before lining out to shortstop.

"He had, like, a 12-pitch at-bat I'm guessing," Greinke said.

That helped swell Greinke's pitch count to 40 after two innings and 100 after six, when he was lifted for a pinch-hitter with the score still sitting at 1-0. While he was in the game, Greinke benefited from a spectacular running catch by Enrique Hernandez in center field in the fourth and a diving play by shortstop Jimmy Rollins on a ground ball up the middle in the fifth.

"After the third inning, they were just hitting the ball hard all over the place," Greinke said. "It was tough. I was making pretty good pitches, for the most part, and the outs were hit well."

Any chance of Greinke escaping with a no-decision was erased in the seventh and eighth innings, each highlighted by two-run homers that increased the Rockies' lead to 7-0 before the Dodgers scored in the bottom of the ninth.