Rallying from a 17-point deficit, the Boston Celtics stretched their win streak to 14 games by beating Golden State 92-88 Thursday in a showdown of the NBA's top teams. Jaylen Brown led the Celtics with 22 points after learning of his best friend's death only hours before and Kyrie Irving ditched a plastic mask protecting facial fractures to score 11 of his 16 points in the final five minutes to spark Boston's triumph. Boston improved the NBA's best record to 14-2, having last lost in their home opener to Milwaukee on October 18, while the defending champion Warriors, who had been atop the Western Conference, fell to 11-4 with their seven-game win streak snapped.