Celtics squeeze out close win vs. Grizzlies

Per the Boston Herald: As chaos hit its climax in the final seconds, Kristaps Porzingis kept his cool. With the Celtics leading the Grizzlies by two during a wild sequence, the ball found Ziaire Williams, whose desperation game-tying shot found Porzingis' hand. Porzingis stood in satisfaction of the moment and seemed to send some trash …