Sandoval led off the third with a double.
Pablo Sandoval homered and doubled during San Francisco's seven-run third-inning, and the Giants beat the Milwaukee Brewers 13-3 in a split-squad game on Saturday.
Sandoval led off the third with a double. He added his first spring homer later in the inning, a long drive over the fence in right.
San Francisco's big inning made it 10-0.
Giants prospect Tommy Joseph hit two home runs, and Barry Zito pitched three scoreless innings. The embattled left-hander allowed one hit and hit a batter.
Milwaukee's Mat Gamel, taking over at first this season after the departure of Prince Fielder, hit his third homer of the spring, a three-run drive in the fourth inning.