According to the NCAA’s rules and principles of seeding, Duke and North Carolina won’t be allowed to meet in the NCAA Tournament before the regional finals. If both teams earn between a No. 1 and a No. 4 seed - as seems likely today — then they can’t meet until the Final Four. Yet, it appears that the Blue Devils and Tar Heels are rushing towards a first-round confrontation in this year’s tournament - a competition for a significant geographical advantage in the pairings. (Duke Basketball Report)