"After making the biggest leap in NBA draft lottery history to land the No. 1 overall pick, the Dallas Mavericks plan to select Duke forward Cooper Flagg and will not entertain the possibility of trading away the pick for a proven superstar, sources told ESPN," the report reads.

Having beaten long odds to win the top pick in next month's NBA draft -- and blessed with an obvious candidate to become the No. 1 selection -- the Dallas Mavericks reportedly aren't planning to use it as a trade chip.