Russell Martin hit two of New York's four homers and the Yankees rebounded for a 9-4 win over Boston on Saturday, one day after becoming the only team to lose to the Red Sox this season.
Curtis Granderson and Robinson Cano also went deep for the Yankees, who already have 18 homers in eight games. The Red Sox have allowed 19 in their eight games.
David Robertson (1-0) pitched 1 2-3 perfect innings after starter Ivan Nova was lifted with one out in the fifth with the Yankees leading 7-4. Clay Buchholz (0-2) allowed five runs on eight hits in 3 2-3 innings as Boston's starters continued to struggle.
The Red Sox cut their deficit to 5-4 with three runs in the fourth before Granderson hit a two-run homer in the fifth and Cano and Martin added solo shots in the sixth and seventh.