Former Manchester United star Robin van Persie has posted a lengthy tribute to Tyrell Malacia after his move to Old Trafford.

The Netherlands left-back, 22, sealed a €15m switch to United from Feyenoord on Tuesday.

Van Persie is now an assistant at Feyenoord and has told United fans what they can expect from Malacia.

"Hi Tyrell, it's Robin here, I would like to congratulate you on your fantastic move to Manchester United," Van Persie said in a video message posted on Twitter. "On this big moment in your career.

"You've shown that with self-belief, lots of talent and hard work day in, day out, and I've seen that from close by, that dreams come true. So to all Red Devils fans, you're not only getting a very talented full-back but as well a fantastic person.

"Be nice to him, support him, through good times and bad times, he will give absolutely everything for you guys. So I'm sure it will be a great connection together.

"On behalf of all Feyenoord fans and Feyenoord people, thanks Tyrell for what you've done and for all these years from a young kid when you arrived in the youth academy up until now upon this fantastic moment. You are a true example for the next generation.

"So thank you very much for all your effort and all you've done for our club and I wish you all the very best. Good luck, man."

Van Persie then added in a tweet: "Congrats on this fantastic move @T_Malacia! 100% deserved, hard work pays off! To all @ManUtd fans, I'm sure you'll enjoy watching Tyrell represent this great club. A huge talent with great fighting spirit - I'm certain he'll be a good fit."