The six-foot-10, 238-pound forward from Peachtree City, Georgia stopped Flagg from putting a poster on UVA to keep the score 51-31 with 17 minutes remaining the game. College basketball fans on social media were surprised to see Flagg's dunk blocked by a freshman coming off the bench.

Freshman star Cooper Flagg had 17 points and 14 rebounds, notching his seventh double-double of the season before halftime, as No. 3 Duke cruised past Virginia 80-62.