Sitting 4 1/2 games back of the Giants in the National League West and 1 1/2 games games back of the second NL Wild Card spot, the Dodgers will try to spilt their four-game series against the D-backs on Sunday at Chavez Ravine.
"I think we know where we are at. We are capable and that is a good feeling to know that," Dodgers manager Don Mattingly said. "We are capable of rattling some games off. I've been around just long enough to know that two days from now, three days from now, we can be on a roll and all of a sudden we don't think we can be beat."
Chris Capuano will get the start for the Dodgers, ready to bounce back after two straight losses.
On Tuesday against the Rockies, the left-hander allowed six runs on 10 hits in six innings of work for his 10th loss of the season. After a solid first half, Capuano has gone just 2-7 since July 3.
"He's lost a little bit of crispness with the fastball, for me," Mattingly said. "A couple games he had it, but when he uses it, his changeup is better, but he hasn't used it quite as much. He's better when he uses the fastball more."
He'll face off against D-backs left-hander Wade Miley, who has put himself into the conversion for the National League Rookie of the Year Award with a 14-9 record and 2.85 ERA on the season.
Miley was a tough-luck loser in his last outing on Tuesday against the Reds, allowing three runs on six hits in seven innings of work in a 5-2 Arizona loss. However, before that loss, he allowed just one run over 14 innings and won two straight games.
"You feel like you're making pretty good pitches and guys are getting hits," Miley said after the loss. "It's just good at-bats. That's what they're supposed to do, that's what they're trying to do up there. I've got to make better pitches."
D-backs: Trio activated from DL
D-backs pitchers Josh Collmenter and Takashi Saito, along with infielder Willie Bloomquist, were activated from the disabled list on Saturday. The team also added infielder Cody Ransom to the roster after claiming him off waivers from the Brewers on Friday.
Even with rosters expanding on Saturday, the team called up only catcher Konrad Schmidt and outfielder Tyler Graham from Triple-A Reno because Reno has qualified for the playoffs.
However, when Reno's season does end, the D-backs plan to promote a few others to the roster.
"He's kind of a speed guy," D-backs manager Kirk Gibson said of Graham. "Another outfielder, runs pretty good. We've been playing with four bench players, which makes it tough to burn anybody."
Dodgers: Three called up for September run
In need of depth on the bench and in the bullpen, the Dodgers recalled reliever Javy Guerra and catcher Tim Federowicz and selected the contract of right-hander John Ely from Triple-A Albuquerque on Saturday as rosters expanded from 25 to 40.
To make room for the moves, Alfredo Silverio was transferred to the 60-day disabled list.
With closer Kenley Jansen sidelined because of a recurrence of an irregular heartbeat, the addition of Guerra, the team's Opening Day closer, comes at the perfect time. He is 2-3 with a 2.66 ERA this season in 44 innings pitched.
"We wanted him to work on some things. In a perfect world he would have more time to do it," Mattingly said. "But we are at where we are at right now. Right now, we are OK in the back end, but you never know. It could be in the eighth or it can be early."
Before a 2-1 loss at Dodger Stadium on Saturday, the D-backs had won six straight games on the road. They still have won eight of their last 12 on the road.
Following the announcements that Vin Scully and Jaime Jarrin would return next year, the Dodgers revealed broadcasters Eric Collins, Steve Lyons, Rick Monday, Charley Steiner, Fernando Valenzuela and Pepe Yniguez have signed contract renewals for the 2013 season.