Carragher’s trained eye focused on the problems and positives in Arsenal’s defence.
“Thomas Vermaelen was outstanding,’’ the Liverpool centre-back said. “In the first half, he won a couple of headers at the back post just as someone was about to stick it in and he got there. Without Vermaelen, we would have been a goal up at least at half-time.
“Laurent Koscielny went off [injured] and it’s very difficult, especially in the back four, you like continuity there. We all remember the great Arsenal back four.
"They used to play every week. When you get injuries in that position, it’s difficult to get a cohesive unit so it’s something that we tried to take advantage of and, fortunately, we did.”