The Dodgers are on a tear, especially on the road, and will look to sweep the Cubs on Sunday afternoon at Wrigley Field.
The Dodgers, 13-2 in the second half and 30-7 over their past 37 games, are expected to activate right-hander Stephen Fife from the disabled list to make his first start in almost a month.
While Dodgers manager Don Mattingly did not make plans to start Fife instead of listed starter Zack Greinke official on Saturday, the move would give the club a six-man rotation and allow the other five starters an extra day of rest.
"We want to give guys extra days when we can," Mattingly said. "Hypothetically, this would be a good time."
Fife is 3-3 with a 2.76 ERA in eight starts with the Dodgers this season. The rookie went on the 15-day disabled list July 7 with right shoulder bursitis. He made two Minor League rehab starts and threw a bullpen session on Thursday in Chicago.
By inserting Fife into the rotation, Greinke would start Monday's game against the Cardinals instead of Sunday.
The Dodgers have won 13 consecutive road games, a franchise record. The road streak is the longest in the Major Leagues since the 1976 Phillies also won 13 straight on the road.
The Cubs, meanwhile, have been outscored 15-6 in the first three games of the series and have dropped six of their last seven games.
Chicago starter Carlos Villanueva is winless in his past 10 outings. He's coming off a no-decision against the Brewers on Tuesday, when he was charged with four runs on six hits over 6 1/3 innings.
It won't get any easier for Villanueva on Sunday against the Dodgers' potent offense.
"They've been pretty hot, they've been playing well," Villanueva said. "Obviously they have a good team. As long as I execute pitches, I should be OK."
In seven career appearances against the Dodgers, including one start, Villanueva has allowed 14 earned runs in 11 innings.
Dodgers: Puig day to day with thumb issue
Dodgers outfielder Yasiel Puig suffered a left thumb contusion on Saturday, the result of a diving catch in the seventh inning that saved a run. The rookie was replaced in right field in the bottom of the eighth and is considered day to day.
Puig is 6-for-10 with a double and a home run in the first three games of the series. He is hitting .376 with 11 homers, 11 doubles and 25 RBIs in 53 games.
Cubs: Murphy promoted, Borbon designated
The Cubs promoted infielder Donnie Murphy from Triple-A Iowa on Saturday after designating outfielder Julio Borbon for assignment on Friday.
Murphy, 30, has played 244 Major League games with the Royals, Athletics and Marlins. He signed a Minor League deal with the Cubs in April and hit .265 in 89 games at Iowa.
Borbon made a baserunning mistake Friday, when he was thrown out trying to advance to third on a ball in the dirt with the Cubs trailing by four runs and none out in the ninth. He was designated for assignment after the game.
"That obviously was an unfortunate thing that happened," manager Dale Sveum said. "But it is a point that, we just can't keep having those things go on and [Borbon] has had a few of those things himself. So it was just time to make an adjustment to the roster and see if somebody else can do the job."
• Dodgers closer Kenley Jansen has nine saves in as many chances over his past 14 appearances, and he leads all Major League relievers with 79 strikeouts.
• The Cubs have at least one extra-base hit in each of their past 27 games since July 5.
Austin Laymance is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.