But Driessen wrote for De Telegraaf: "Do they want to play in July with the risk of an injury? This is a very tricky point, there are legally a lot of problems with this.
"Ziyech? In fact, he should finish the competition at Ajax until August 3 and then go to Chelsea. But who is going to pay him in the intervening period? Who will insure him in case something happens to him?
"It can be a simple ankle injury, but he can also get injured or be hurt much more severely. Do I know what could happen in the meantime?! These are very tricky topics and I think that is the bottleneck can be the whole plan to finish the league until August 3. It is almost impossible."