Luka Doncic and the Dallas Mavericks come into Boston and steal this game on Kevin Garnett's ceremonial night. Big second halves from Dorian Finney-Smith and Spencer Dinwiddie helped the Mavericks shut down the Celtics late. Luka Doncic scored 26 points, 8 rebounds and 8 assists. Spencer Dinwiddie's go ahead three capped of what would be an impressive win between two great defensive teams who continue to climb the standings in their respective conferences. Like and subscribe! Turn on post notifications. #LukaDoncic #Mavericks #Celtics