United manager Sir Alex Ferguson has expressed interest in the Dane.
Muhren told manutd.com: "There have been a lot of rumours about Christian Eriksen, the Danish number ten. He is still very young and needs the time to develop. I have read that a lot of big clubs are interested, including United, but I think he should stay at Ajax for another one or two years to get more experience.
"He's playing in the Danish national team and has good vision and technique, and I think he's one of the better players in Europe at his age. He's doing well and is one United fans should look out for.