Sunderland boss Roy Keane insisted he was mystified by reports that he will attempt to lure former adversary Patrick Vieira to Wearside in January.
The pair memorably clashed on a number of occasions as rival captains of Manchester United and Arsenal, but a number of newspapers had raised the possibility of a sensational bid.
However, Keane said: "I haven't got a clue where it has come from. It's not fair on the club or Patrick Vieira."
He added: "He's at a club, he is under contract and good luck to him. I am sure if you asked him, he has got no intentions of leaving Inter Milan or wherever he is at.
"If he was going to leave there, I am not sure Sunderland would be at the top of his list."
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