Celtic and Rangers have been warned that it would take an 'extraordinary offer' to land Hacken talent Silas Andersen.

Both Glasgow giants have been linked with a move for the 21-year-old Danish midfielder, who impressed in Swedish football last season.

The ex-Utrecht star developed into a key man for the Gothenburg club and has attracted interest from the Old Firm and other clubs in Europe.

However, Hacken sports director Martin Ericsson has insisted his club are in no rush to sell their main asset, who still has two years left of his contract.

He said: "Our ambition is that Silas Andersen stays with us.

"Of course, we also know that there may be offers for this young, very talented player that could result in a transfer.

"However, it would have to be something extraordinary for Silas to leave Hacken this month.

"And there have so far been no concrete offers for him yet."