Flag scored 23 of his game-high 28 points in the second half to power the Blue Devils past the Wolfpack 74-64 to improve to 18-2 and 10-0 in ACC play. Duke outscored NC State by 14 in the second half thanks largely to the play of Flagg and fellow freshman phenom Kon Knueppel, who added 19 points of his own.

For the second consecutive game, Duke avoided a major upset to stay perfect in conference play. After surviving a scare against Wake Forest on Saturday,

Duke basketball's Cooper Flagg wasn't pleased with his first half against N.C. State, and neither was Jon Scheyer. Here's what changed.