Cooper Flagg was the highlight of the draft and of the Duke Blue Devils. However, Klay Thompson just gave Kon Knueppel the ultimate stamp of approval.

Now, after averaging 20.5 points across two impressive Summer League games, Flagg is set to join a veteran-laden Mavericks roster that features Anthony Davis, Klay Thompson, D’Angelo Russell, and, once healthy, fellow Duke alum Kyrie Irving.