"He is more like Carra than Agger. He is a player who is strong and physical, he is good in the air and quick. I think he will settle here quickly."
The Slovakia international is the most expensive defender in Liverpool history and Benitez added: "For me the price is not the key. When you talk about the market now the prices for players are crazy. We were checking centre backs.
"One who was 18-years-old, the other was 21 years old and another one 23/24. The price was 14 million euros for one, 16 million euros for another one and the third one was 20 million euros, so the market is crazy. We have signed a good player at the right price. Martin is 23 and he is a player for the present and the future. We are building a better squad than we've had before and also one with a lot of young players than can be the spine of the team in the future."