Borussia Dortmund CEO Hans-Joachim Watzke says they've set their price for Mats Hummels.
With the likes of Liverpool, Manchester City and Barcelona watching on, Watzke has warned Bayern Munich they won't get a discount on Hummels' price.
"We have set the price tag and it's not negotiable.
"Either they pay it or there will be no deal," said Watzke to Suddeutschen Zeitung.
It's suggested the price for Hummels is €30 million.