PITTSBURGH (AP) — Miguel Vargas and Mike Tauchman hit back-to-back homers in a four-run first inning, and the Chicago White Sox cruised to a 7-2 victory over the struggling Pittsburgh Pirates for their first series sweep this season. Vargas hit a three-run shot to open the scoring against Andrew Heaney, his 11th homer of the year but first since June 15. Tauchman followed by launching a drive that carried over the right-field stands and bounced into the Allegheny River. The White Sox became the last major league team to sweep a series this season as they sent the Pirates to their 11th loss in 12 games.