When Colorado and San Francisco meet on Friday night for the first game of a weekend National League West series at AT&T Park, the Giants will be looking to revive a run while the Rockies will try to build off back-to-back wins over the Braves.
Losing three of four games to the Nationals this week, the Giants had their five-series winning streak snapped, dropping their first set since May 5-7 against the Pirates. They'll look to spark up their run again when they host Colorado.
Meanwhile, the Rockies have dropped eight of their last 11, but come in following a pair of blowout wins over Atlanta at home.
Colorado's starting pitcher on Friday, Jorge De La Rosa, has more wins against the Giants than any other team in his career, with a 9-5 record and a 4.03 ERA in 109 1/3 innings.
In his last start, De La Rosa had to battle the rain, and gave up five runs in 5 1/3 innings of work against the Dodgers, with eight strikeouts and four walks. All four of the batters he walked eventually ending up scoring as he lost his second start in a row.
On the season, De La Rosa is 6-5 with a 4.04 ERA.
Tim Lincecum will get the ball for the Giants. He's 5-4 with a 4.97 ERA and against Colorado is 11-9 in 27 starts with a 3.96 ERA.
In his last start, Lincecum went six innings, allowing three runs on six hits and striking out six in a 6-4 win against the Mets on Sunday.
Giants: Casilla starts rehab
Santiago Casilla began a rehab assignment with Class A Advanced San Jose on Thursday.
The 33-year-old right-hander had a right hamstring strain earlier in the year and owns a 3.29 ERA in 11 big league seasons.
Before going down, Casilla was 1-1 with a 1.37 ERA in 22 relief appearances.
Rockies: Something about San Francisco
The Rockies are 57-116 in San Francisco all-time for their most losses in any road stadium.
Knowing how important the upcoming road trip is, Rockies manager Walt Weiss decided to rest shortstop Troy Tulowitzki on Thursday to prepare.
"Always a tough place to go in and play," Weiss said of San Francisco. "Games are always very interesting there, very intense. It's nice to go in there off a couple wins."
The Rockies beat the Braves 8-2 on Wednesday and 10-3 on Thursday to wrap up a 10-game homestand.
Left fielder Corey Dickerson said that's just the type of momentum they need heading into a matchup with the Giants, who are 19 games over .500.
"It's huge," Dickerson said. "They're leading the [division]. Hopefully we can gain some ground on them. We're just going to put our best foot forward."
• The Rockies had three ejected in their 10-3 defeat of the Braves on Thursday, including Weiss.
• Had the Giants been swept by the Nationals on Thursday, it would've been the first sweep of San Francisco this season.
Grace Raynor is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.