Duff: Close to deal (GaryMPrior/Allsport)

Duff's superb World Cup prompted transfer speculation with both Liverpool and Manchester United reported to be interested in the Republic of Ireland star.

But Souness insists the £10 million-rated winger will stay at Ewood Park, where he has two years left on his current contract.

However, Souness insists no formal bid has been received for the 23-year-old in his two years at the Rovers' helm, and Duff is not for sale at any price.

Souness said: `We are getting very close to an agreement with Damien on a new contract.

`It is important for Damien because he wants to get it sorted out. In my time here we have not had one offer for Damien.

`We have had inquiries from Liverpool and Manchester United since the end of the season, but no offer. We don't want one. He is not for sale, end of story.'

Duff is expected to be named in the Rovers' line-up for the opening game of the new Premier League season against Sunderland tomorrow, although he is likely to be given a more withdrawn role behind new strike force Andy Cole and Dwight Yorke.

Duff had an outstanding World Cup campaign with Ireland, and if Souness can persuade him to stay with the Lancashire outfit, it would represent a major coup.

`All that happened during the World Cup was that our secret got out,'' said Souness.