Tottenham boss Andre Villas-Boas admits he sees Porto midfielder Joao Moutinho as a replacement for Luka Modric.
Modric is in Spain today for talks with Real Madrid.
"It will be very difficult to sign him," AVB said of Moutinho.
"I have experience of Porto and it is a club that sells good products but they are expensive,
"It has been like that with numerous amounts of players and that is why it is very difficult."