Rangers face the prospect of having to sell Danny Wilson this summer.

Liverpool and Birmingham City are being linked with the young centre-half.

The Herald says Wilson's contract has only 15 months to run and the longer he remains at Ibrox without signing a new deal, the more his value drops. A ballpark figure of £3m has been spoken of if the player were to move on this summer.

That sum will probably be halved if he stays until January, and will be reduced to a derisory development fee if he leaves at the end of his contract in the summer of 2011.