Chelsea secured the signing of Hakim Ziyech in February, as the Blues signed the Moroccan international for around £33m.
Ziyech’s four-year stint with Ajax will end on June 30 and he’d officially become a Chelsea player from July 1.
The 27-year-old winger has now sent an emotional farewell message to Ajax and the club’s fans.
“The last 4 years were amazing. I don’t even know where to start for expressing how I’ve experienced this journey,” he wrote on Instagram.
“I guess making the Europa League final, making the Champions League semi-final, winning the Johan Cruijff Schaal, winning the KNVB Beker, winning the Eredivisie and becoming football player of the year says enough about how beautiful these years were.
“I want to thank everyone at Ajax for making this next step possible. You have all played a part in my progression over the last years. I hope you are proud of that, at least I’m proud to have worn the jersey of the best team in the Netherlands. Until we meet again.”