It has been no secret who the Mavericks have planned to take, as every talent evaluator has Duke's Cooper Flagg as the top prospect, and arguably the best American prospect since

NBA Draft, held at Barclays Center, is being dubbed as ‘Flagg Day’, with Duke star Cooper Flagg expected to be picked at No 1

Had Cooper Flagg been born 10 days later, someone else would be hearing their name called as the No. 1 overall pick in when the NBA Draft begins Wednesday night at Barclays Center