Bayern Munich general manager Uli Hoeness will only consider selling Franck Ribery if his club receive a "crazy" bid for the France midfielder.

Hoeness this week informed Real Madrid the Bavarians were not willing to sell the 26-year-old, but speculation is rife he may soon be hearing from Manchester United manager Sir Alex Ferguson - if Cristiano Ronaldo's move to Madrid goes through.

"We would only talk on very strict conditions," Hoeness told Munich's Tz newspaper. "And that would be if they were prepared to do crazy things."

Hoeness recently claimed that not even one of Ribery's legs could be bought for 50 million euros, but the consensus in Germany is that a bid in the region of 75 million euros could prove to be tempting enough.

Having already spent close to that amount on new players this summer, the Bundesliga outfit may welcome the opportunity to recoup their expenditure in one deal - particularly since Ribery has made it clear he fancies a move abroad.