L'pool look to close gap
Liverpool defender Jamie Carragher is confident his side's rediscovered meanness can help them close the gap on faltering Arsenal.
Wednesday night's fixture at the Emirates Stadium sees the team in third place in the Premier League table host the team in fourth.
Arsenal had been top just a few weeks ago but back-to-back defeats by Manchester United and then Chelsea have seen them fall behind the top two and most pundits have now written off their title chances.
Liverpool are coming up strongly behind them and a season that was being labelled "in crisis" a few weeks ago is now looking much healthier for Rafa Benitez and co.
The clean sheet in the 1-0 Merseyside derby victory Everton at the weekend was their fourth straight shut-out and Benitez's men have now taken 17 points from a possible 21 in their last seven league outings.
Carragher said: "Over the last four or five years defensively we've been as good as probably any team in the world.
"You have to look at the overall record and defensively we've had a fantastic record under Rafa Benitez and we're showing that again now.
"At the start of the season we had a lot of people in and out and maybe we were playing a little bit different with two offensive full-backs.
"We're just getting back to our normal selves and hopefully we can keep that going. If you keep clean sheets you're going to win games because you only need to score one goal."
Liverpool had been out of the top four since October and now they were back striker Dirk Kuyt is keen to stay there.
The Dutchman, who scored the winner against Everton, said: "Out of the last seven matches we have taken 17 points and have kept six clean sheets, so you can see from those results that we are playing better and our confidence is up.