The player is believed to be on his way to Manchester in order to complete other formalities,like agreeing on personal terms and also having a medical before the shut of the transfer window on Monday.
According to the Dutch press,United are said to have paid £14.2million for the 24-year old.
"BREAKING: #mufc has reached agreement with Ajax to sign Daley Blind, subject to a medical and personal terms" Manchester United wrote on its twitter page.
"A further announcement will be made when the process is complete."
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