A.J. Griffin glanced into the visiting dugout and saw Derek Jeter, Alex Rodriguez and Mark Teixeira among others. Oakland's rookie right-hander felt some nerves all right. Then, Yoenis Cespedes hit a two-run homer in the first inning to give him a quick lead and Griffin shut down one of baseball's best lineups for five innings as the Athletics beat the Yankees 4-3 Thursday night to snap a nine-game skid at home to New York.