EMPHIS - When Antoine Walker heaved a last-second shot from beyond halfcourt, he thought more about starting a celebration than making the unlikely attempt. But just when it seemed the Celtics had exhausted all of their late-game luck, the ball fell through the net at the buzzer.

It was a fitting end to last night's surprising 103-97 win over the Memphis Grizzlies, a game that concluded with a 14-0 run by the visitors over the final 1 minute 41 seconds.