The €90million bid was rejected late Friday evening.
According to sources close to the deal, Ajax deem the offer from United “not enough.”
This latest development poses a set back to United who had the feeling that their latest bid would have been enough to cross the deal over the line.
Man Utd’s earlier bid for the player was for €80million.
It is yet unknown if Erik Ten Hag’s side will return with an improved offer or simply walk away.