Jurgen Klopp and Andy Robertson opened up on a new tactic Liverpool employed in their 3-1 Premier League win over Arsenal.

The Reds came back in style to record an impressive victory over Mikel Arteta's side after Robertson's howler led to the Gunners taking the lead.

Alexandre Lacazette opened the scoring for Arsenal after the Liverpool left-back made a hash of an attempted clearance.

But his strike was cancelled out by Sadio Mane, before Robertson atoned for his error by firing the Reds into the lead, then substitute Diogo Jota completed the victory with a first goal for his new club.

The Reds' defence has come under some scrutiny during the early games of this season, and there were a few nervy moments at Anfield.

Andy Robertson could only watch as his howler gifted Alexandre Lacazette a goal

Arsenal's fast-paced attack of Pierre-Emerick Aubameyang, Willian and Lacazette were caught out several times by Liverpool's offside trap - which Sky Sports pundit Jamie Carragher admitted was making him "nervous".

Klopp said afterwards the tactic had worked - although he admitted it was a risky strategy which led to Alisson having to make a save at one point.

"I think 60 per cent of the balls in behind were offside," said Klopp. "That's why it feels not so great but it was offside.

"Ali had to make one save. They had two balls in behind, that's three. You need a goalie in these situations. You cannot avoid that."

Liverpool keeper Alisson saves from Lacazette

Robertson said the Reds had played well without the ball, adding: "It was a fantastic counter-pressing game from us. We all reacted when we lost the ball.

"We put them under pressure and forced them into mistakes. With the ball we showed quality.

"We can't have too many complaints, other than my assist at the wrong end. Ninety-nine times out of 100 I clear that. The lads dug me out of a hole. A couple of years ago I'd have let that get to my performance.

Jurgen Klopp celebrates during Liverpool's 3-1 win

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"We showed a positive reaction. They've got a fast frontline which you need to be wary of. We dealt with them well and caught them offside a few times.

"We could have had a couple more. We'll take the 3-1. It's nice to beat your rivals and make it three wins from three."