Jackson earns much-needed win as Cubs down Pirates

Cody Ransom hit a tie-breaking three-run homer in the bottom of the seventh inning to lift the Chicago Cubs to a 4-1 victory over the Pittsburgh Pirates and avert a sweep of the three-game set from Wrigley Field.Ransom also scored Chicago's first run of the day in the sixth inning, and his blast off Justin Wilson (5-1) enabled Edwin Jackson to record only his second win of the year after the struggling veteran turned in one of his best performances in a Cubs uniform