Luka Dončić (age 19.7 years) defended by TraeYoung of the Atlanta Hawks. Luka went 21p-2a-9r, Trae went 17p-5a-4r, but the player of the game was Kent Bazemore with 32p who helped Atlanta beat Dallas 111:104 (here's a game recap).
Source: SportsYahoo.com