Cooper Flagg is clearly ready for the big leagues, and his NBA preseason debut against the Thunder proved just that.
Cooper Flagg made his NBA debut tonight for the Dallas Mavericks in their preseason opener in Fort Worth at Dickies Arena against the Oklahoma City Thunder, and he didn't disappoint. Before the game, Jason Kidd said that he would only play in the first half, and he made his impact felt quickly and had the arena on its feet in this rivalry matchup against the former NBA champions.