Liverpool manager Kenny Dalglish believes veteran defender Jamie Carragher still has plenty to offer the club.
The Reds vice-captain turned 33 last month but his performance in last weekend's victory over Chelsea highlighted his value.
In his first match in over two months after recovering from shoulder surgery, he seamlessly slipped back into a new three-man defence and helped snuff out the threat of £50million former team-mate Fernando Torres on his debut.
"He's a fantastic influence in and around the place but if he's on the pitch he can be a far greater influence," said the Scot.
"He was fantastic last Sunday. It's a great credit to him that he got through the game. It's a great credit to his professionalism and the respect he has for his body because it had been a while since he last played."
He added: "He's probably been the club's best defender for many years. I don't think there's anything original you can say about a guy who is 33 years of age.
"He is everything that everybody knows he is. He is a great credit and asset to this football club, and he'll be invaluable to us going forward."
Dalglish said it was difficult to compare Carragher to Liverpool's defensive greats of the past.
"For me, Carra is better than Alan Hansen and Mark Lawrenson because he's playing now - they cannot play now because they're 50-odd years of age," he joked.
"I think everybody knows the respect and appreciation I have for Jamie Carragher, and it's the same as every other Liverpool fan.
"Carra has been as good a defender as we've had for many, many years.
"We're fortunate that he's here and we're fortunate that he's so committed to the club."
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