The 30-year-old Estonian will be competing with the likes of Joel Matip, Dejan Lovern and Mamadou Sakho for a spot in Jurgen Klopp's starting eleven but says he will be comfortable working alongside new teammates to help strengthen the team.
The former Augsburg man told the club's official website: "For me the most important thing is the team effort. Whatever needs to be done for the team.
"I've always been a team player and this is going to be [the case] until I retire so we will see. Of course if you come to this big, amazing club there's a lot of really good players."
When asked about club's another new signing Joel Matip, he said: "He's a good, young defender. In Schalke he was a really important player for them and now that he's here, I'm really happy."