Flagg has been close to Mackenzie for the better part of a decade, first working with the personal trainer and coach when he was in seventh grade. The pair remained close as Flagg went to Duke, earning the John R. Wooden Award as the nation's top college basketball player.

Flagg averaged 19.2 points, 7.5 rebounds, 4.2 assists, 1.4 steals and 1.4 blocks per game for a Duke team that lost in the Final Four to Houston.

Cooper Flagg is making the media rounds this week. And as you'd expect, everyone is asking the Duke freshman phenom the same question: "Are you going to the NBA?" Flagg is handling the inquiries with a measured approach.