Amid Novak Djokovic's devastating straight-sets quarterfinal conquest of David Goffin, there was a moment of pure dazzle.

Defending Wimbledon champion Djokovic stormed through 15 of the last 17 games in a 6-4, 6-0, 6-2, romp to surge into the Wimbledon semifinals for the ninth time.

Watch: Devastating Djokovic Demolishes Goffin

During the opening game of the second set, the pair collaborated on this classic double-tweener duel. First Goffin goes tweener then Djokovic replies with a tweener of his own.