Ziyech announced the news in an Instagram post.
“Last season we had unforgettable moments together. Moments like those are the reason why I want to play football,” wrote Ziyech.
He added that the achievements of last season are part of the “reason why I want to improve my game and have more of those moments. The reason why I’m a proud [Ajax] player.”
Ziyech had a contract with Ajax until the end of the 2020-21 season.
The Moroccan playmaker received several offers from international football clubs, including Sevilla. There were also rumored offers from A-lister clubs like Real Madrid, Bayern Munich, and Arsenal.
The football player, however, rejected the offer, emphasizing that he is stick with Ajax to do his “very best on the field.”
On the Sevilla offer, Ziyech said that the Spanish football club has the same level as Ajax.
“I don’t switch Ajax for nothing,” Ziyech told Fox Sports.
He added that he has not received the right offer yet.
Several international football clubs speculated that Ajax was in talks with German giant football club Bayern Munich.
Ziyech is one of Morocco’s key players. He joined Ajax in 2017.
In May, Ajax named Ziyech as its Player of the Year for his individual brilliance as well as his vital contributions to the collective flow during Ajax’s success story in last year’s UEFA Champions League.