Manchester United will have to pay more than what they sold Cristiano Ronaldo to Real Madrid for if they're to land Bayern Munich winger Franck Ribery.

The Sun says the German giants have slapped a £90million price-tag on their star winger who is a potential replacement for Cristiano Ronaldo at Manchester United.

Bayern general manager Uli Hoeness said: "We would only talk on very strict conditions - and that would be if they were prepared to do crazy things."

United boss Ferguson has been a huge admirer of French ace Ribery, 26, for years and he is said to be considering a bid following Ronaldo's £80m sale to Real Madrid.

Ironically, the Spanish giants are the favourites to get Ribery whose agent Alain Migliaccio also represents former Bernabeu hero Zinedine Zidane.