Mauricio Dubon hit a home run and Jeff Samardzija went six solid innings as the visiting San Francisco Giants topped the Los Angeles Dodgers 5-4 on Friday in the opener of a three-game series. The Giants overcame a three-homer night from A.J. Pollock, who got the Dodgers within a run in the ninth inning with his third blast. Dubon's second career home run came against Dodgers ace Clayton Kershaw, who was held to his shortest outing of the season, four-plus innings.