Dutch Cup holders Ajax moved into the last-eight after victory over AZ Alkmaar on Thursday.
Ajax did enough to progress as they claimed a 1-0 win at the Amsterdam Arena in the third match under command of coach Frank de Boer.
The only goal of the game arrived on the stroke of half time through Miralem Sulejmani.
Demy de Zeeuw set up the Serbian attacker, who finished with a superb chip.
AZ fought hard for an equaliser, but their hopes all but vanished with 18-minutes left when Pontus Wernbloom was shown a straight red card.