Chris Carter made a nice first impression for the Brewers. Carter hit his first home run for Milwaukee, then had a tiebreaking sacrifice fly in the seventh inning to lead the Brewers over the San Francisco Giants 4-3 Wednesday. Jeff Samardzija, making his Giants debut after signing a $90 million, five-year contract, allowed three runs and eight hits in 5 1-3 innings, struck out six and walked three.