In the lead-up to the draft, Flagg’s longtime trainer Matt MacKenzie RG.org reporter Mark Medina about how he’s preparing Flagg for the NBA, along with a story about his athlete’s unique competitive nature.

Mavericks' Cooper Flagg 'Mistake' Turns Heads on Friday originally appeared on Athlon Sports.

The next face of the Mavericks shined at Duke but started in Maine. Here's the story you don't know, dating all the way back to when he was 14 years old.

Denver Nuggets point guard Russell Westbrook was recently predicted to join Cooper Flagg after opting out of his contract.

Cooper Flagg is set to be the first overall pick by the Dallas Mavericks. However, with GM Nico Harrison, Flagg could be let go of after just a few seasons.