The day started in storybook fashion. A moving tribute to Mariano Rivera was followed by Andy Pettitte taking a no-hitter into the sixth inning of his final regular-season start at Yankee Stadium. The way it ended might have finished the Yankees' playoff hopes. After honoring the career saves leader and celebrating Pettitte, New York saw its AL wild-card hopes dim Sunday with a crushing 2-1 loss to the San Francisco Giants.