Ajax have completed the signing of Jordan Henderson from Al-Ettifaq.
The former Liverpool captain joined the Saudis only in August, but has been released from his contract to join the Dutch giants.
"I'm sad to say that I will be leaving Al Ettifaq with immediate effect," Henderson wrote on social media.
"It wasn't an easy decision but one that I feel is best for me and my family.
"I want to take this opportunity to thank the club and the fans for all the support during my time. I really felt the love from day one.
"I'll keep watching and hoping for your success. Good luck for the future.
"Putting on that Ajax shirt for the first time will be really special and I can't wait for that to happen," he said in an interview released by his new club.
"Once I knew that there was an opportunity [to move here], I was over-excited and just overwhelmed that this opportunity was there for me.
"It was something that I wanted to try to make happen so it is very humbling for me to be here now. It's a special day."