Manchester United striker Robin van Persie is a big fan of Manchester City youngster John Guidetti.
Both players have strong ties with Feyenoord.
"He's done a really good job. He plays passionately and with much emotion, it's his style of play. He is very passionate and also enthuses the audience. He scored a hat-trick against Ajax when he was 19 years old. There are not many who can say that," said Van Persie.
"He does a really good job."
RvP continued: "I'm sorry for him because he has not been able to play for so long due to a virus infection. I hope they are cautious with him and take it easy so that he gets the time he needs to get back to his old level again because he definitely has touched many hearts in Rotterdam."