Technical director Marcel Boudesteyn is also looking forward to the longer collaboration. “Jasper has taken steps in the past year, when he mainly played his matches in O21. Partly because of this, he became first keeper this year and he is working on a strong season. I also hear positive sounds from Diederik (Boer ed.). Jasper can get even better in the coming years and he, Diederik and I have every confidence in that.”