Concise News learned that Ziyech has drawn interests from both Premier League clubs in recent weeks due to his brilliant showing in the Champions League this season.
The Moroccan star has scored 21 goals and provided 24 assists for Ajax this season.
Overmars on Friday said Ziyech was ready to leave the club when any top club comes for him.
He said: “He leaves when a top club comes.
“He is in focus because of his achievements in the Champions League.
“Many big clubs are buzzing around him. We promised Hakim [that we would] agree to a good transfer.”