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LOS ANGELES -- There was only one thing Colorado Rockies manager Jim Tracy could do when he realized the umpires would not change their minds.

He went Hollywood.

Tracy put on a show after he was ejected for disputing a reversed call in the seventh inning of the Rockies' 2-0 victory over the Los Angeles Dodgers on Monday night.

The Dodgers had a runner at second with two outs when Shane Victorino hit a sinking liner and Dexter Fowler attempted a sliding catch. First-base umpire Mike Estabrook called Victorino out.

Dodgers manager Don Mattingly came out to question the initial ruling. The umpires huddled and they overturned the call. TV replays showed Fowler trapped the ball.

"I caught it one hundred percent. No doubt," Fowler said. "Shane was still running, and I was like, 'Aren't there three outs?' I told the first-base umpire he made the right call. I walked into the dugout and skip asked me: 'Hey, did you catch it?' And I told him: 'Yeah, I caught it.' I'd never seen that before -- we go in the dugout and then have to go back out."

Tracy was ejected by third-base umpire and crew chief Mike Everitt when he slammed his cap to the ground. Tracy remained on the field for several minutes having an animated discussion with Everitt.

"I think I'm a pretty tolerant guy, but there's a limit to everything," Tracy said. "Quite frankly, I think he caught the ball and there's no question about that. I've seen the replay a few times, and even if he trapped it, I understand and appreciate the fact that the umpires are doing the very best they can to get the calls right. And yet, on that particular play, I find it hard to believe how three other guys can weigh in being as far away from that as they were."

The Dodgers failed to capitalize after play resumed because Adam Ottavino retired Mark Ellis on a fly ball to left with runners at the corners.

Ottavino (3-1) took over in the fifth inning for a tiring Drew Pomeranz and gave up one hit in three innings of relief -- the disputed single by Victorino. Carlos Gonzalez had a sacrifice fly in the first inning and rookie Jordan Pacheco added an RBI single in the third for the Rockies, who prevented the Dodgers from overtaking NL West-leading San Francisco following the Giants' loss at St. Louis.

Ottavino also got his first big league win at the Dodgers' expense in a relief outing on June 1 at Coors Field.

Matt Belisle, who came in having allowed 18 earned runs over 19 2/3 innings in his 17 previous appearances at Dodger Stadium, escaped his own jam in the eighth by striking out Luis Cruz with two men on. Rafael Betancourt pitched a perfect ninth for his 18th save in 22 chances.

Dodgers lefty Chris Capuano (10-8) allowed two runs and nine hits in seven innings and struck out seven.

Pomeranz threw 84 pitches over four innings, allowing three hits and three walks while striking out seven. In his previous four starts, he was 0-3 with a 9.35 ERA after pitching 6 1/3 innings of one-hit ball in a 5-1 victory at Washington on July 6

"I wish I'd thrown a few less pitches, but sometimes that happens," Pomeranz said. "My mechanics really weren't the greatest today and I struggled with command, but when you make key pitches, you can make all of that kind of go away. I was just missing up with my fastball, but I made it work out there with what I had and my stuff was good when I threw strikes."

Pomeranz gave up singles to his first two batters, but escaped his jam by striking out Juan Rivera with two men in scoring position. Two innings later, he walked his first two batters before retiring Matt Kemp on a double-play grounder and striking out Hanley Ramirez with Victorino at third base.

"I didn't do my job today," Kemp said. "Victorino gets on and then and Mark gets on base, which is what they're supposed to do. That happened two innings in a row, where the first two batters get on and I don't drive in any runs or even move them over. We just didn't get any bid hits tonight. Their job is to get us out, and that's what they did."

The Rockies, who have played without shortstop Troy Tulowitzki for the last 58 games because of a groin strain, announced Monday that the other remaining star of their 2007 pennant-winning infield -- first baseman Todd Helton -- will undergo arthroscopic surgery Friday to repair a torn labrum in his right hip.

Helton, a five-time All-Star and three-time Gold Glove winner who is the franchise leader in almost every major offensive category, turns 39 on Aug. 20 and is determined to return for the final season of the two-year, $9.9 million contract extension he signed in March 2010.

Capuano gave up singles to two of his first three batters before Gonzalez hit a sacrifice fly for his team-high 74th RBI. In the third, Capuano gave up three straight one-out singles -- including a run-scoring hit by Pacheco -- but minimized the damage by retiring Ramon Hernandez on a double-play grounder after an intentional walk to Gonzalez.

Game notes

Rockies 2B Chris Nelson, who missed 17 games because of an irregular heartbeat, was reinstated from the disabled list to replace Helton on the active roster. ... The Dodgers designated OF Tony Gwynn Jr. for assignment and recalled OF Jerry Sands from Triple-A Albuquerque. ... Tracy said that Pacheco, Matt McBride and Tyler Colvin all will get playing time at 1B in Helton's absence -- along with Michael Cuddyer when he gets off the disabled list. Pacheco started there on Monday night.