Jordy Mercer cranked out his 6th home run as part of the Pirates' offensive explosion (Photo Credit: David Hague)

SAN FRANCISCO -- If America's coldest summer is in San Francisco, the chill did not reach the Pirates' bats. The Bucs offense heated up to scorch the Giants for a 10-5 victory on a cool Thursday night by the Bay.

The warming glow burned bright early. Matt Cain gave up three straight hits to start the game down 1-0, then he served Garrett Jones and Jordy Mercer matching 92-mph fastballs in the 2nd that the hitters cranked out for home runs.

Jones demolished his Cain shot into San Francisco Bay (he called it "being on time for his best fastball") to become the first hitter to make such a splash on the fly into both the Bay and the Allegheny River. Mercer smashed his home...

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