Birmingham City have slapped a £6 million price-tag on Jack Butland.

Liverpool and Everton lead the chase for Birmingham's England goalkeeper, for whom they rejected a £6m bid from Southampton in the summer.

Manager Clark said: "By the time the window opens he'll have played 25 or so ­Championship games.

"We would be looking for an even more substantial figure than we were offered in the summer - even though I certainly don't want it to come to that."