WATCH: Marcus Smart is a split-second late on game-winning buzzer-beater as Celtics fall to 76ers in Game 4 | CBS Sports Headlines WATCH: Marcus Smart is a split-second late on game-winning buzzer-beater as Celtics fall to 76ers in Game 4 Smart came a hair short of giving the Celtics a … Continue reading WATCH: Marcus Smart is a split-second late on game-winning buzzer-beater as Celtics fall to 76ers in Game 4