Milan Baros' switch to Hamburg is in jeopardy after the German club's bid for the player failed to meet Aston Villa's valuation.
Villa chairman Doug Ellis held talks with Hamburg on Monday regarding the 24-year-old Czech international.
"Hamburg's valuation of Milan falls way short of anything that is remotely acceptable," Baros told the official Villa website.
"We are certainly not going to sell Milan Baros on the cheap."