Giants use 6-run 8th inning to fuel comeback win

Photo by Tim Nwachukwu/Getty ImagesThe San Francisco Giants hit five home runs on Tuesday, and each one felt very important, in the heat of the moment and in hindsight.

Let’s take them in chronological order.

The first came in the fifth inning, with the Giants trailing the Philadelphia Phillies 4-0. It came from Buster Posey, and it was merely a solo shot. A solo shot doesn’t do all that much to eliminate a 4-0 lead — a four-run deficit doesn’t feel much bigger than a three-run deficit.

But it broke the ice for the Giants, and even though you didn’t expect them to rattle off nine more runs, doing so suddenly felt possible. You quickly remembered Duane Kuiper and Javier López telling you just…