Liverpool manager Brendan Rodgers has again insisted he doesn't want to lose Daniel Agger but financial realities could see him leave Anfield.
Agger is the subject of interest from Manchester City as the Premier League champions look to strengthen their defence this season.
While Rodgers has stressed it will require a huge sum for the club to accept a bid for the Denmark international, he acknowledged that the money could then be used elsewhere.
And in confirming City had made an enquiry, the former Swansea boss is keen to use the recent transfer of Brazilian Thiago Silva as a benchmark figure for top quality defenders.
"Thiago Silva has left AC Milan for PSG for £40million," said Rodgers.
"He (Agger) is one of the leading players in European football, so it is going to be a big valuation.
"There has been contact from City, yes.
"But it's nowhere near the valuation of what the player is worth and you can only consider something like that if it is going to benefit you.
"Of course you might lose a top player but if it benefits you going forward - and you can make two or three steps because of it - you may have to consider it."
Rodgers added: "Is he a player I want to lose? No. He understands how I want to work and can play a real pivotal part in how I want to play.
"But I am a realist. If someone comes in with a massive bid and it is in the best interests of the club, whether it is Daniel or any other player, you have to look at it.
"The reality is we don't the money that was here.
"I don't have a bucket-load of money to go and get in a load of players. We have to be strategic."