Nava, Buchholz help BoSox beat Orioles

Daniel Nava's three-run homer in the seventh inning backed seven scoreless frames by Clay Buchholz, as Boston downed Baltimore, 3-1, in the opener of a three-game set from Fenway Park.Buchholz (2-0) allowed three hits and walked four with eight strikeouts for the Red Sox, who were coming off a series win in Toronto over the weekend