Brendan Rodgers admits Jamie Carragher will be 'irreplaceable' when he finally hangs up his boots at the end of the season.
Carragher announced on Thursday that his 17th season as a Liverpool player would also be his last as he retires from professional football.
Asked by reporters how the club would replace a man who made its No.23 shirt famous, Rodgers said: "For me, he'll be irreplaceable. I don't think that type can been replaced.
"In the modern game there are very few like him. You see a lot of rash defending now throughout the game. This is a guy who's a pure defender, he defends with great intelligence. He knows when to mark a man, when to mark the space. He understands the basic principles of defending.
"He's an outstanding leader and organiser in the team, and to find someone with all those capabilities and who has got the heart the size of a lion, is very, very difficult to find.
"You won't find that type [anymore]. You obviously have to look for other types of players with other qualities, and that's what we'll have to do."
Asked for an insight into how he tried to persuade Carragher to prolong his career, Rodgers added: "I've had many conversations with Jamie this season so I knew all along what was in his mind. He's obviously thought long and hard about it over the last 18 months.
"In terms of staying on it was clear that it was something I wanted him to do. Jamie had thought about this last summer.
"I came in and we had some good conversations and I persuaded him to stay on.
"He's been a giant for me since I've come in here. An incredible man and one of a dying breed. Someone who's got real old-school values and ethics.
"As you can see from his last performances in two big games, he's still got the qualities to play at this level.
"He's put his body through a lot over the course of these last 18 years and he's got a beautiful young family he may want to spend some time with.
"The supporters should really enjoy watching him because he's a real iconic player for this club."
Speculation is already rife as to what the future holds for Carragher - though the man himself has made it clear that for now he wishes to concentrate on football.
Rodgers added: "From now until the end of the season he just wants to concentrate on his football and doesn't want to look too much into the future.
"He's still very fit. He's 35 years of age but how committed he is to football has allowed him to stay in peak condition.
"At the moment he's only concentrating on doing everything he can to finish the season as a success. Beyond that, it's too early to say."