SAN DIEGO (AP) - Andrew Werner allowed two runs over six-plus innings in his major league debut and Carlos Quentin drove in three runs, leading the San Diego Padres to a 4-2 victory over the Pittsburgh Pirates on Wednesday.
The Padres swept the three-game series and have beaten the Pirates in 18 of 21 games.
Quentin had three RBIs for the second straight game, including a two-run double in the first inning and an RBI single in the fifth.
Werner, a left-hander who was called up from Triple-A Tucson earlier in the day, allowed four hits, walking four and striking out two.
Brad Brach, Luke Gregerson and rookie Tommy Layne finished the four-hitter. Layne pitched the ninth for his first major league save.
Werner was coming off one of his worst starts of the season in which he allowed a season-high eight runs in 4 1-3 innings.
But he kept Pittsburgh off balance and had allowed only Pedro Alvarez's fourth-inning RBI single heading into the seventh. After Gaby Sanchez led off the seventh with his fourth homer and Werner walked Alvarez, the rookie was lifted.
San Diego gave Werner a big lift by scoring three runs in the first inning off James McDonald (11-6) on only one hit.
McDonald gave up four runs and five hits over five innings. McDonald walked five and struck out two.
Pittsburgh's Andrew McCutchen went 1 for 5 as his NL-leading batting average dropped to .349. McCutchen, who has only two home runs and 11 RBIs since July 18, went 3 for 15 in the series.
The Pirates, who have lost four of five, were swept in a three-game series for the first time since losing at Baltimore in June.
McDonald started the first inning by issuing consecutive walks to Everth Cabrera, Will Venable and Chase Headley. Quentin came a few feet away from hitting a grand slam when his fly ball hit off the wall in left-center field for a two-run double.
Mark Kotsay followed with a sacrifice fly.
McCutchen reached on a one-out single in the fourth. After a walk, McCutchen scored on a Pedro Sanchez's two-out single.
Cabrera stole two bases to raise his season total to 24 without being caught. Cabrera set a club record with his 28th consecutive stolen base, dating to Sept. 10, 2010.
Notes: Since 2006, the Pirates are 6-16 at Petco Park. ... Werner was San Diego's 14th starting pitcher this season, one shy of the club record set twice. ... Jerry Mumphrey held the previous Padres record with 27 straight stolen bases in 1980... . With their 7-5 loss in 10 innings on Tuesday night, the Pirates were the last team in the majors to lose an extra-inning game. ... Pittsburgh is off Thursday before hosting Milwaukee on Friday. ... San Diego has Thursday off before it travels to Arizona on Friday.
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