PHILADELPHIA -- Left fielder Kyle Schwarber homered twice and drove in three runs as the Chicago Cubs completed a double-header sweep of the Philadelphia Phillies with a 7-3 victory in Game Two on Friday night.

Third baseman Kris Bryant also homered and drove in three runs for the Cubs, who won for the seventh time in eight games.

In the first game, Jake Arrieta (19-6) pitched eight strong innings to run his personal winning streak to eight games, lifting the Cubs to a 5-1 victory.

Schwarber hit a solo homer in the first and a two-run homer in the second, each on the first pitch he saw from Phillies starter Alec Asher, giving the Cubs a 3-0 lead.

The first came on a fastball, the second on a slider, after center fielder Dexter Fowler doubled. Schwarber now has 15 homers this season.

Philadelphia center fielder Odubel Herrera doubled in the fourth and scored on a groundout by shortstop Andres Blanco.

Schwarber, however, walked and scored on a double by right fielder Chris Coghlan in the fifth. With Coghlan still at second later in the inning Bryant slammed a curveball from Asher over the center field fence, his 24th homer of the season. That put the Cubs up 6-1.

An RBI double by Phillies third baseman Cody Asche in the fifth cut the Chicago lead to 6-2.

Bryant and Phillies right fielder Brian Bogusevic each singled home runs in the seventh, leaving Chicago on top 7-3.

Cubs starter Kyle Hendricks (7-6) went 6 2/3 innings and allowed three runs and four hits while striking out five and walking two.

Hector Rondon earned his 28th save, retiring all three hitters he faced after the Phillies put two men aboard to open the ninth.

Asher (0-3) worked five innings and allowed six runs and seven hits. He struck out two and walked three.

Arrieta allowed one run and six hits in the first game, while striking out seven and walking two. He leads the major leagues in victories, and is the first Cubs pitcher to win 19 games since Jon Lieber went 20-6 in 2001.

Arrieta's winning streak is the longest by a Cubs pitcher since Milt Pappas won 11 straight in 1972. He has not dropped a game since the Phillies beat him 5-0 on July 25, when the Cubs were no-hit by Cole Hamels.

Second baseman Starlin Castro hit a solo homer and shortstop Addison Russell had a two-run double for the Cubs.

NOTES: The Phillies played their second "traditional" double-header -- i.e., the second game starting approximately 30 minutes after the first -- of the season. Before this year, they had not played one since 2009. It was the first such double-header for the Cubs since 2006. ... It was also the first twin bill between the Phillies and Cubs since 2001 at Wrigley Field, and the first between the two teams in Philadelphia since 1990. ... Philadelphia 1B Ryan Howard ended an 0-for-35 slump with a double in the seventh inning of the nightcap.