Andrew McCutchen hits a go-ahead homer as the Pittsburgh Pirates beat the San Francisco Giants 6-5 for their third straight win

Andrew McCutchen broke a tie with a home run, the Pittsburgh bullpen threw seven innings of two-run ball and the Pirates ran their winning streak to three in a row with a 6-5 road triumph over the San Francisco Giants on Monday night.

Less than three full days until the trade deadline, the Pittsburgh Pirates sent Mitch Keller to the hill against the Giants in what potentially could be his final start with the club. Keller, a 2014 draft pick by Pittsburgh and the most tenured member of the Pirates,