Derek Jeter and Tino Martinez hit three-run homers, Alex Rodriguez added his major league-leading 12th shot and the Yankees won their seventh straight, beating the A's 15-6 Saturday night. Jorge Posada also homered, while Martinez had three hits and drove in five runs for the Yankees, who have scored 59 runs during their longest winning streak in more than a year. Hideki Matsui matched his career high with four of New York's 18 hits. Kevin Brown (2-4) won his second straight start for the Yankees (18-19), who are back within a game of third-place Toronto in the AL East after their April struggles.