After early struggles, Chavis has become a force against lefties

Michael Chavis goes deep in the third inning Saturday against the Brewers.Ask most baseball fans and players, they'll tell you that 3-0 is an automatic take pitch.

It's not always the case for Michael Chavis and the Pirates though, and when he was given the green light Saturday against Aaron Ashby, he got a hold of a sinker down the heart of the plate and let it fly:

That third inning blast gave the Pirates' the lead for good Saturday, propelling them to a 7-4 win over the Brewers at PNC Park.

"It’s a 3-0 green light and he hits a homer to right-center," Derek Shelton said about the homer. "He doesn’t try to get too big. He doesn’t try to come out of his shoes. He stays with his swing. We know…