CHICAGO (AP) - A.J. Burnett pitched into the ninth inning and Pedro Alvarez and Russell Martin homered to lead the Pittsburgh Pirates to a 6-2 win over the Chicago Cubs on Saturday.
Burnett (4-6) gave up four hits and three walks with five strikeouts in 8 1-3 innings to improve to 5-0 at Wrigley Field.
The Pirates tagged Cubs starter Jeff Samardzija (3-7) for eight hits, including Alvarez's two-run home run in the fourth, his team-high 13th of the year. The right-hander struck out seven in six innings.
Martin's homer in the eighth off reliever Hector Rondon was the 100th of his career.
Alfonso Soriano hit his 379th career home run for the Cubs, tying him with Orlando Cepeda and Tony Perez for 64th on the all-time list.