Pollock powers D-backs to doubleheader sweep

Pollock powers D-backs to doubleheader sweep

DENVER -- After they watched the Rockies score four runs in the ninth inning for a walk-off win on Monday, the D-backs turned the tables Tuesday night as they scored four runs in the seventh to complete a sweep of a doubleheader with a 5-3 victory at Coors Field.

"It was a really good win," said D-backs outfielder A.J. Pollock, who delivered the decisive two-run homer. "It was really good to have nothing going and then all of a sudden find something late in the game like that and get the win."

The D-backs, who won the first game, 6-4, fell behind 3-1 after the Rockies scored a pair of runs in the first inning and received a solo homer from Nolan Arenado in the third. The home run was Arenado's 32nd of the season, moving him into sole possession of first place in the National League. Rockies starter Kyle Kendrick and reliever Christian Bergman combined to hold the D-backs to just one run through six innings.

The D-backs were finally able to break through for the four runs in the seventh off relievers Scott Oberg and Jairo Diaz. The rally made a winner out of starter Rubby De La Rosa (12-6).

Collmenter locks down the save

Rally time: The D-backs' seventh-inning rally began with Oberg hitting Phil Gosselin with a pitch, and it spiraled on the Colorado bullpen. Chris Owings followed with a walk, and pinch-hitter Aaron Hill then laced a two-run double to end Oberg's night. A.J. Pollock capped the frame with a two-run homer to right.

"I really haven't seen the guy, but I knew he had a slider," Pollock said. "I kind of had it in my head, I wasn't really sitting on it. I hit it on the barrel -- that was kind of the key. I think the good thing is I didn't stop my path. I kind of knew it was a slider, and instead of correcting your swing, I just kept the swing going."

Hill's game-tying two-run double

Kyle's return: In his first start back from right shoulder inflammation, Kendrick ran into his pitch limit early but was effective over four innings. In total, he gave up three hits and one run with two walks and two strikeouts, finishing the night with 72 pitches. He served up the homer to Goldschmidt in the first and had a pair of two-out walks in the fourth, but another round of Arenado's defensive gems helped keep the damage at a minimum. It was the first time since May 17 that Kendrick gave up one run or fewer in an outing longer than one inning.

"I feel good, which was the main thing," Kendrick said. "Body felt good, especially my arm. My arm felt great. Before I went on the DL, I wasn't feeling that great, obviously. [I] got the right treatment and was built back up, which is what we needed to do. Obviously, I would've liked to have gone deeper, but that was the pitch count -- 70 to 75. You don't want to go back out there for the fifth and have a long inning and throw over what we wanted to throw."

Kendrick's return marks transition to 6-man rotation

Statcast: Arenado shows off arm

Getting the job done: It wasn't a thing of beauty, but De La Rosa managed to limit the damage in the first inning and give the D-backs six quality frames. De La Rosa allowed just two hits and one hit batter for the rest of his outing. It was a good bounceback start for De La Rosa, who allowed five runs in five innings against the Cardinals his last time out.

"I think I lost a little concentration," De La Rosa said of the first inning. "But after that I tried to get it back quickly and attack the zone."

De La Rosa strikes out Blackmon

Shaky in the 'pen: The Rockies' bullpen has been a mess for much of the season, but Oberg and Diaz had been two recent bright spots until Tuesday night. Before their dual struggles, that tandem had turned in scoreless outings in 10 of their last 11 combined appearances. Pollock's go-ahead homer was just the second hit Diaz had given up this season.

Arenado turns two in the 6th

Tuesday marked Arizona's second doubleheader sweep at Coors Field this season. The D-backs also won both games against Colorado on May 6. It is the first time in franchise history the D-backs have swept a pair of doubleheaders in the same season against the same team. According to STATS Inc., the feat has been accomplished six other times since 1998.

"We still haven't got a real good answer on that. He was talking about pitching him up high in the zone and we told him that might have been a little too high." -- Chip Hale on De La Rosa's head-scratching balk

What was Rubby De La Rosa doing on this strange balk?

D-backs: Chase Anderson gets the start for the D-backs in the finale of this four-game series Wednesday night. The right-hander is 1-0 with a 1.42 ERA in his last two starts after a brief two-day demotion to Triple-A Reno.

Rockies: Right-hander Jon Gray will make his fourth start at Coors Field this season, looking for better results than his last home outing. Against the Mets on Aug. 21, he surrendered seven runs and eight hits in just 1 2/3 innings. First pitch for Wednesday's series finale is at 6:40 p.m. MT.

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Steve Gilbert is a reporter for MLB.com. Dargan Southard is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.