Leicester City title winner Robert Huth believes Liverpool will face a battle to keep hold of Virgil van Dijk.
Huth can see Barcelona and Real Madrid moving for the Dutchman.
"I'd be surprised if these guys [Real Madrid and Barcelona] aren't looking at him," Huth told the Daily Star. “There aren't too many players [like him].
“Imagine him and [Raphael] Varane at Madrid. I know they've still got [Sergio] Ramos - and he's obviously at the top of his game - but he's considerably older than Van Dijk.
“Varane is a similar sort of age. Imagine them for five years at Madrid. Jesus, I'd definitely watch that!
“Liverpool are a great club, but there is a couple of clubs bigger in terms of world stature. Real are consistently competing for the Champions League and league titles."