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Arizona, which lost four of five starters from a team that fell one basket short of the Final Four, is ranked 12th in the Associated Press preseason poll.
North Carolina, which returns four starters and nine of its 10 top scorers from the team that reached the round of 16 in the NCAA Tournament, is No. 1 for a record ninth time.
The Tar Heels received 35 first-place votes from the 65-member national media panel.