Right after his introductory press conference Cooper Flagg changed out of his suit and joined the Mavs Academy campers for their basketball clinic

Cooper Flagg with the clutch block and the And-1 bucket at the other end to put the Mavericks up 4 with 374 seconds remaining with replays

Cooper Flagg drives spins and scores the layup

Scottie Barnes strips Cooper Flagg and then lets the Raptors bench know hes going up for the dunk

Cooper Flagg bumps Dillon Brooks out of the way and viciously throws it down

Cooper Flagg with the putback layup to become the second-youngest player in NBA history to reach that mark with replays

Cooper Flagg soars for the powerful one-handed dunk with replays