Fulham are preparing another offer for Celtic midfielder Stilian Petrov.

The Premiership side have already seen two bids rejected for the Bulgarian international and are ready to return with a £4m offer. Celtic have failed to persuade Petrov that his future lies at Parkhead, with the playmaker having told the Glasgow giants that he doesn’t see his future in Scotland.

A source close to the player revealed: “Celtic have had three and a half months to strike a deal with Stilian, but that doesn’t seem to be any closer and you eventually have to ask: Do Celtic really want him?

“The club have lost Jackie McNamara and Chris Sutton because they have not come up with the sort of deals the players were looking for, and, without being disrespectful to either, Petrov would be a massive loss.

“Stilian wanted to stay, his family are really happy in Glasgow but as things stand, he no longer wishes to continue with talks.

“If Celtic won’t sell him then he will see out the remainder of his contract at leave on a Bosman at the end of next season.

“Peter Lawwell is in charge of contract negotiations but Gordon Strachan is the manager and he has got to be stronger. He has got to take responsibility for this as well.

“The Celtic supporters must understand that Stilian wasn’t looking for the world. It is the most important contract of his career but he was desperate to sign a new deal and feels badly let down by the club again.”