Giants hold off Diamondbacks 6-5 to keep National League West lead

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PHOENIX (AP) -- Cody Ross had a two-run double and scored on a double steal in the fifth inning to help San Francisco build a five-run lead, then the Giants held on for a 6-5 win over the Arizona Diamondbacks on Tuesday night to stay atop the National League West.

The Giants took advantage of an off-kilter Josh Collmenter (4-2) to lead 5-0 after five innings, but starter Matt Cain (6-4) nearly gave it all back over the next two.

Miguel Montero hit a three-run homer off the San Francisco right-hander in the sixth inning to make it 5-4 before Nate Schierholtz gave the Giants the extra cushion they needed with an RBI double in the seventh.

Closer Brian Wilson walked two and had a wild pitch with two outs in the ninth, but struck out Stephen Drew to close out his 19th save.