They got a 3-0 victory on Saturday against the Rockies to pull within two games of the Cardinals for that final playoff spot in the National League, after St. Louis took a 6-4 loss against the Nationals in 10 innings.
"We need to win tomorrow," Dodgers manager Don Mattingly said. "We've got to keep pressure on St. Louis. We've got to force them to win everyday. That is what we have to do."
Josh Beckett will look to do just that on Sunday against the Rockies, as he takes the mound at Dodger Stadium in the series finale.
The right-hander took a loss in his last start against the Padres, allowing two runs (one earned) on five hits over 5 2/3 innings. Walking two and striking out seven, Beckett fell to 6-14 on the season with a 4.76 ERA.
A little unlucky in his six starts since joining the Dodgers, Beckett has a 3.16 ERA, but holds just a 1-3 record, as Los Angeles has scored just 13 runs in support.
Jorge De La Rosa will be on the hill for the Rockies, making his third start since coming back from Tommy John surgery.
The left-hander went three innings against the Cubs on Tuesday, allowing four runs (two earned) on five hits, while striking out two. The earned runs came on two mistake pitches that turned into solo homers.
"You don't expect him to be pinpoint sharp," manager Jim Tracy said. "You want to see him go out there and throw the ball pain-free, which he is doing. I took him out of the game because I saw some frustration, No. 1, and the other thing was, with a guy who's just spent 16 months rehabbing from a Tommy John and with the conditions we were playing in, I didn't think that was conducive to continue to push the envelope with Jorge."
Dealing with steady rain throughout the start, De La Rosa tossed 67 pitches. Come Sunday, the left-hander said he's eager to push himself further.
"I think I felt a little stronger than the first time I threw," De La Rosa said. "My pitches were good too. If I keep throwing more and more, I think I'll feel stronger. That's what I'm looking for."
Rockies: Colvin sits with sore elbow
Colorado scratched outfielder Tyler Colvin from the lineup before Saturday night's game against the Dodgers because of a sore left elbow. Matt McBride took Colvin's place in right field.
"He's not sure, we're not sure, exactly how it happened, but he got treatment this afternoon and he tried to swing and was not able to swing," Tracy said. "Throwing is also an issue, that goes without saying."
Colvin joins a slew of other Rockies who have been hampered by injuries. Carlos Gonzalez has been slowed by a sore hamstring, outfielder Dexter Fowler is limited because of a wrist issue and first baseman Jason Giambi is battling leg pain.
Dodgers: Kershaw to start Wednesday
After throwing eight pain-free, shutout innings against the Rockies on Friday night, in which he struck out 10, Clayton Kershaw will get one more start this season.
The Dodgers left-hander is listed as the starter for Wednesday's regular season finale against the Giants.
"That is my plan," Kershaw said. "Hopefully it matters. I definitely plan on pitching, regardless."
Trying to make a case for his second-straight National League Cy Young Award, Kershaw is second in the NL in innings pitched (219 2/3) and strikeouts (221). The lefty has also held opposing hitter to a .213 average, which is also second in the NL.
The Dodgers have won their last 12 games in which they've scored five or more runs and are 57-4 overall in those contests this season.
Dodgers first baseman Adrian Gonzalez extended his hitting streak to 11 games after a first inning single in Saturday's game.
In his career, De La Rosa has held opponents to a .264 average, holding lefties to a .234 average and righties to a .272 clip.