Cooper Flagg made his first appearance for the Mavericks in Las Vegas during his professional debut at the NBA Summer League.

Hill got a close look at Flagg's competitive edge last summer when USA Basketball invited the then-high school phenom to practice with the Select Team ahead of the Paris Olympics. As managing director of the program, Hill watched Flagg hold his own against NBA players -- a rare opportunity for a teenager.

Cooper Flagg is one of the most well-rounded prospects to enter the NBA in recent memory. His competitve drive started pea picking in Maine.

Kyrie Irving Has Terrible News For Cooper Flagg, Mavs Fans originally appeared on Athlon Sports. Next season can't start soon enough for the Dallas Mavericks and their fans. They just landed Cooper Flagg, one of the most anticipated prospects in NBA history, and getting him next to Anthony Davis is an exciting thought for now and years to come.

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