Even though most experts are very high on Cooper Flagg, that doesn't seem to be the case with Chuck Klosterman.

And while Flagg to Dallas is the worst-kept secret in the NBA right now, the Mavericks seemingly jumped the gun in announcing the news on their official team website 12 days before they can officially confirm they're picking the Duke phenom, according to Front Office Sports.

Flagg is set to visit the Mavericks in Dallas on June 17 for a private workout and to meet with team personnel. The organization has indicated publicly and privately that it intends to select Flagg and has no plans to target any other prospect with the No. 1 pick on June 25.