Celtic refuse to give up their battle for Germinal Beerschot midfielder Victor Wanyama.
Aston Villa boss Alex McLeish wants to bring the young Kenyan to England in the coming weeks.
An insider at Celtic told the Scottish Sun: "If Celtic get him for £1m now then they know his sell-on value in a few years' time will be massive."
McLeish considered signing Wanyama while in charge of Birmingham City.