England are back in for Russia coach Guus Hiddink after it was revealed the Dutchman had yet to sign a new long-term contract.
The Russian Football Union are dragging their heels in extending Hiddink's contract, according to the Dutchman's agent Cees van Nieuwenhuizen.
"I have not received a response," he said. "It's strange, very strange.
"Mr Mutko himself said that he wanted to continue working with Hiddink, but there hasn't been any kind of follow-up."
The news could alert the Football Association, who continue to search for a successor to sacked England boss Steve McClaren.
Van Nieuwenhuizen, however, denies that there has been any approach from Soho Square.
"I've heard from journalists in England that he (Hiddink) is a candidate.
"But I want to establish contact with the RFU and those people responsible for Hiddink's contract as soon as possible. But they aren't getting back to me.
"I've helped Guus sign many contracts with many different federations, but I have never known a situation like this.
"I don't know how long Hiddink is prepared to wait, but don't forget that the current contract doesn't expire until after Euro 2008.
"Perhaps Mutko has changed his mind and doesn't want to work with Guus? I don't know."