Manchester United boss Sir Alex Ferguson says has been informed not to publicly discuss the vacant England manager's position by the Premier League.
Ferguson has previously tipped Tottenham Hotspur manager Harry Redknapp for the role, following the resignation of Fabio Capello in February.
And such comments have led the Premier League to ask Ferguson to refrain from making such comments.
"You can't believe [I've been sent a letter], can you?" said Ferguson.
"I've absolutely no idea. I'm not supposed to discuss it. "So I'm out of the running."
The Football Association have previous disclosed that they would not appoint a new permanent boss before the end of the current domestic season as to not disrupt the current harmony between clubs and their manager's in the English top flight.
Their letter to Ferguson, who with 36 major honours to his name, is well respected in the game, is seemingly with the same intention.
When asked as to Redknapp's suitability last month, Ferguson said: "There is no doubt Harry Redknapp is the best man. He has the experience and personality and the knowledge of the game. He has changed the fortunes of every club he has been at."
Kenny Dalglish, Alan Pardew and Roy Hodgson are among those who have also tipped Redknapp for the role with the Three Lions.
Fellow Premier League managers such as Martin O'Neill and Steve Kean have confirmed that they have received similar letters from the Premier League, although Norwich boss Paul Lambert and Wigan chief Roberto Martinez are yet to get the warning.