Michael Laudrup has told Liverpool that they will have to dig deep to prise Joe Allen away from Swansea.
Swansea appear resigned to losing Allen, with Reds boss Brendan Rodgers making clear his desire to sign a player he nurtured during his time with the Welsh club. But the Swans do not have to sell and with that in mind they will look to eke out every last pound from Liverpool.
It had appeared that £15 million would be enough to secure Allen, but Laudrup has suggested that figure could be on the low side.
"Joe is worth a lot of money," Laudrup said.
"Their manager knows if he wants to change the way Liverpool play he needs a midfielder like Joe who is young and can play at the highest level.
"We saw they bought a couple of midfielders in the last few years for a lot of money but Joe is on a level above.
"If one is worth £17 million then he is worth more, perhaps £20 million or so."