Derby County have announced that they have accepted a bid from Cardiff City for defender John Brayford.
The Championship outfit have been open about their desire to keep hold of the 25-year-old, who has 12 months remaining on his current contract at Pride Park.
Despite the option of signing a new deal, the Rams have confirmed that Brayford is on the brink of moving to the Premier League.
A statement on the club's official website said: "After holding discussions with the player, who is entering the final year of his contract, the offer has been accepted after he expressed a strong desire to make the move and test himself at the highest level of English football.
"The fee is to remain undisclosed and the player has been given permission to discuss personal terms and undergo a medical. It is expected Brayford will complete the formalities of the transfer on Friday."
Brayford has been at Derby since 2010.