Yahoo Sports reports: San Francisco hit three homers in the second inning, including a two-run shot by Luis Arraez, Carson Whisenhunt won a matchup of rookie starting pitchers and the Giants held off the Atlanta Braves 7-5 on Wednesday night to sweep a split doubleheader. The Giants won the opening game of the doubleheader 7-2 as left-hander Robbie Ray threw 6 1/3 scoreless innings.