However, local lawyer Gerrit Pieter Poiesz says a loan arrangement could be the answer.
He told De Telegraaf: "FIFA is not a party to the contract, they do not pay the salary and they are not liable if anything happens. It is an employer-employee relationship.
“Ziyech could be loaned for a few months with permission from Chelsea, Ajax and Ziyech. That way, clubs and players can cooperate to finish the postponed season, but with so many parties that is a hell of a job."