​​Liverpool great Jamie Carragher is of the opinion that Dutch defender Virgil van Dijk is part of the elite group of world's best centre-backs, however, he still needs time to become the best in the world like ​Real Madrid superstars Raphael Varane and Sergio Ramos.

The Dutchman has shown tremendous development in technique and stature since moving to the Premier League with Southampton and now with Liverpool, where he arrived for a £75m. While his transfer fee raised eyebrows, Van Dijk has proved to be worth the money.

And Carragher, who won the Champions League with Liverpool believes that Van Dijk is one of the best defenders in football at the moment.

Speaking to ​Soccer AM, Carragher said, "I think he's (Van Dijk is) right in the top group. Some people may put him top. I would just hang fire with that with the fact he hasn't won the biggest trophies yet. I think you have to do that."

The Liverpool legend continued, "You want to be known as the best in whatever position, you've got to have something on the CV - Premier League, Champions League."

Comparing him to the likes of Raphael Varane and Sergio Ramos, Carragher concluded, "He got to the final last season. But I think the two players at the other end of the pitch in Ramos and Varane, not so much that they're better players than Virgil van Dijk, but they've won Champions Leagues, both won the World Cup. When you've got that on the CV, it's hard to look past."