Even when the San Francisco Giants pick up a rare win at Coors Field, they still lose. In this case, two pitchers -- starter Matt Cain and reliever Santiago Casilla, who both strained their right hamstrings and will undergo MRIs to determine the severity. Hunter Pence hit one of San Francisco's three solo homers and reliever Yusmeiro Petit threw three sharp innings after Cain left as the Giants beat the Colorado Rockies 5-1 on Wednesday night. read more at http://scores.espn.go.com/mlb/recap?gameId=340521127&teams=san-francisco-giants-vs-colorado-rockies
