Liverpool legend Jamie Carragher has urged Jürgen Klopp to complete his summer transfer overhaul with the signing of a left-back, following the team's impressive 4-0 victory over Barcelona on Saturday (6 August). The German boss has made six new additions during the current transfer window in Sadio Mane, Georginio Wijnaldum, Joel Matip, Loris Karis, Ragnar Klavan and goalkeeper Alex Maninger – while Marko Grujic has also joined his ranks after spending the second part of last season on loan at Red Star Belgrade following his January signing.

However, the boss is yet to strengthen the left-back despite Alberto Moreno came under huge scrutiny last campaign and Jose Enrique and Jon Flanagan have left the club. This led to versatile James Milner starting during the victory over Barcelona, before being forced to be replaced by Moreno due to an injury.

Klopp admitted after the game that Liverpool are open to make more signings before the end of the transfer window and Carragher believes that the left-back should be his main priority, having been linked with the likes Leicester's Ben Chilwell and German international Jonas Hector.

"I think defensively, yeah. I think the left back area is certainly something that hopefully someone will be coming in after the young lad at Leicester has not come off," Carragher said to Sky Sports. "But James Milner is playing there and I thought James Milner for 35-45 minutes – I mean the challenge he made in the first half to stop a certain goal – he played very well there.

"But I think you want to be going into the season with one recognised left-back. I've been critical of Alberto Moreno but hopefully he'll improve as he's obviously older a little bit more mature, working with Jürgen Klopp he will improve but it certainly the one area Liverpool need to improve."

Alberto Moreno
Alberto Moreno and James Milner have covered the left-back during the pre-season.AFP