Cooper Flagg put the league on notice before he ever played an NBA game
Tim MacMahonOct 15, 2025, 07:00 AM ETCloseJoined ESPNDallas.com in September 2009Covers the Dallas Cowboys and Dallas MavericksAppears regularly on ESPN Dallas 103.3 FMSEVENTEEN-YEAR-OLD COOPER FLAGG had not yet played a single game for Duke when…