Luka Dončić (age 19.8 years) going at Anthony Davis from the New Orleans Pelicans who came to Dallas. The Mavs won 122:119 with Davis going 32p-2a-18r, but it was Luka's near triple double at 21p-10a-9r that propelled the Mavs to victory (read a recap).
Source: TheBirdWrites.com