CHICAGO -- Jake Arrieta threw seven shutout innings and Nate Schierholtz drove in three runs to lead the Chicago Cubs to a 7-0 victory over the St. Louis Cardinals on Friday.

Arrieta (1-0) allowed two hits and struck out seven for his first win with the Cubs.

The hard-throwing right-hander was acquired from the Baltimore Orioles in a July 2 trade.

Before Friday, his only other day on the Cubs' roster was as the 26th man for a doubleheader against Milwaukee on July 30.

The Cubs snapped a four-game losing streak with the win and are 7-7 this season against the Cardinals. St. Louis has dropped six of nine overall.

The Cubs had been shut out in four of their past five home games – a streak dating back to Aug. 3.

Cardinals starter Jake Westbrook (7-8) walked the first three batters he faced in the bottom of the first inning.

Schierholtz, the cleanup hitter, hit a two-run single to center to put the Cubs.

After Welington Castillo grounded into a double play, Donnie Murphy followed with a run-scoring single to give the Cubs a 3-0 lead.

Arrieta sailed through the Cardinals lineup. After allowing a single to Carlos Beltran in the second, he got Kolten Wong to ground into a double play in his major league debut.

Those two outs started a streak of 13 straight outs (including five strikeouts) until he walked Westbrook with one in the sixth.

The next batter, Matt Carpenter, also walked to give the Cardinals their first threat of the game, but Jon Jay grounded into a fielder's choice and Matt Holiday struck out looking to end the inning.

The Cubs added a run in the fifth on Schierholtz's sacrifice fly and then scored two more in the sixth on a run-scoring double by Darwin Barney and a safety squeeze bunt by Arrieta.

The final run in the seventh scored on a wild pitch.

NOTES: With the addition of prospect Kolten Wong (who went 0-for-3 in his debut) to the Cardinals' roster and lineup on Friday, former World Series MVP David Freese was relegated to the bench with leadoff hitter Matt Carpenter (who had been playing second) moving to third base. "I would say it's a day-by-day situation," general manager John Mozeliak said. "I'm not saying (Wong) has to play every day – there are gonna be times when we want to get David back in the lineup – so I imagine there's gonna be some split playing opportunities." ... Cubs RHP Matt Guerrier was scheduled to have surgery on his throwing arm on Friday. The surgery, performed by Dr. Timothy Kremchek, is expected to sideline Guerrier six to eight months. ... The Cards' Joe Kelly (3-3) faces Travis Wood (7-9) in the second game of the series on Saturday.

Also on HuffPost:

Loading Slideshow...
  • Chicago Cubs starter Scott Feldman pitches to the New York Mets in the first inning of a baseball game in Chicago on Saturday, May 18, 2013. (AP Photo/Charles Cherney)

  • CHICAGO, IL - MAY 18: Darwin Barney #15 of the Chicago Cubs forces out Lucas Duda #21 of the New York Mets during the sixth inning on May 18, 2013 at Wrigley Field in Chicago, Illinois. (Photo by David Banks/Getty Images)

  • Chicago Cubs relief pitcher Kyuji Fujikawa, of Japan, delivers during the ninth inning of a baseball game against the New York Mets Friday, May 17 2013, in Chicago. The Mets won 3-2. (AP Photo/Charles Rex Arbogast)

  • CHICAGO, IL - MAY 17: Anthony Rizzo #44 of the Chicago Cubs hits a double in the 1st inning against the New York Mets at Wrigley Field on May 17, 2013 in Chicago, Illinois. (Photo by Jonathan Daniel/Getty Images)

  • Chicago Cubs starter Jeff Samardzija delivers during the first inning of a baseball game against the Colorado Rockies in Chicago, Wednesday, May 15, 2013. (AP Photo/Paul Beaty)

  • WASHINGTON, DC - MAY 11: Edwin Jackson #36 of the Chicago Cubs celebrates with manager Dale Sveum #4 after scoring a run on a two run RBI single by Anthony Rizzo #44 in the fifth inning during a game against the Washington Nationals at Nationals Park on May 11, 2013 in Washington, DC. (Photo by Patrick McDermott/Getty Images)

  • WASHINGTON, DC - MAY 11: Hector Rondon #56 celebrates with Welington Castillo #53 of the Chicago Cubs after the Cubs defeated the Washington Nationals 8-2 at Nationals Park on May 11, 2013 in Washington, DC. (Photo by Patrick McDermott/Getty Images)

  • CHICAGO, IL - MAY 08: Kevin Gregg #63 of the Chicago Cubs pitches in the 9th inning against the St. Louis Cardinals at Wrigley Field on May 8, 2013 in Chicago, Illinois. The Cardinals defeated the Cubs 5-4. (Photo by Jonathan Daniel/Getty Images)

  • CHICAGO, IL- MAY 7: Relief pitcher Kevin Gregg #63 of the Chicago Cubs reacts after the final out of the ninth inning against the St. Louis Cardinals on May 7, 2013 at Wrigley Field in Chicago, Illinois. The Cubs defeated the Cardinals 2-1. (Photo by Brian Kersey/Getty Images)

  • CHICAGO, IL - MAY 06: Starlin Castro #13 of the Chicago Cubs hits a two RBI single against the Texas Rangers during the fourth inning on May 6, 2013 at Wrigley Field in Chicago, Illinois. (Photo by David Banks/Getty Images)

  • CHICAGO, IL - MAY 06: The Chicago Cubs celebrate their win against the Texas Rangers on May 6, 2013 at Wrigley Field in Chicago, Illinois. The Chicago Cubs defeated the Texas Rangers 9-2. (Photo by David Banks/Getty Images)

  • CHICAGO, IL - MAY 05: Alfonso Soriano #12 of the Chicago Cubs bats against the Cincinnati Reds at Wrigley Field on May 5, 2013 in Chicago, Illinois. The Reds defeated the Cubs 7-4. (Photo by Jonathan Daniel/Getty Images)