Corey Hart and Aramis Ramirez both hit two-run homers Friday and Milwaukee took advantage of Pittsburgh\'s pitching problems to down the Pirates 9-3. The Pirates had to turn to their bull pen in the first inning when starter Jeff Karstens suffered a hip strain. Karstens (5-4) retired only one batter while giving up four runs on five hits -- including Hart\'s two-run blast. Milwaukee eventually pounded out 15 hits against five Pittsburgh pitchers. The Brewers broke things open with a four-run eighth that included the two-run homer by Ramirez. Mark Rogers (3-1) lasted 5 1/3 innings to get the win. In his seventh start of the season, Rogers allowed a run on five hits with five strikeouts.