"It's more difficult for a player to stay at the same club for a long time now and even more so to play the number of games he has," said Benitez.
"All the time I've known Carragher he's managed to do something even more difficult. Not only has he played at a lot of games, he's been able to do so at a very high level and be so consistent.
"For me, it's a fantastic achievement and it's fantastic for me to have someone who is such a good professional."