What began with 15 teams has dwindled to two in Charlotte, North Carolina, as the ACC Tournament bracket has chewed up and spit out 13 others to leave us with No. 1 seed Duke and No. 2 Louisville with only Saturday's title game remaining.

While the focus will undoubtedly skew toward Duke — with or without Cooper Flagg — UNC, Clemson and Louisville are coming off thrilling finishes in their own quarterfinals.

Duke basketball and UNC played a thriller in the ACC Tournament at Spectrum Center. Here are the observations.