Cooper Flagg may not have been happy with his professional debut in the NBA Summer League, but he still drew some rave reviews afterward.

Flagg's first points as a pro came on a slam dunk with less than five minutes to go in the first quarter. The Mavericks guard finished with 10 points, six rebounds and eight assists in his debut. He played 32 minutes, making 5 of 21 field goals, missing all five of his three-point attempts.

After the game, Flagg called his performance “one of the worst games of my life.” Ryan Nembhard and Miles Kelly picked up Flagg’s poor shooting by combining for 38 points as the Mavericks snuck past the Lakers 87-85.