By North-west correspondent Alex Stevens

Liverpool have stepped up their pursuit of a new left-back by monitoring Holland international Jetro Willems, Football Insider sources understand.

The Merseysiders sent a delegation to watch the PSV Eindhoven defender in action for the national team in Amsterdam in Friday’s friendly against France.

As reported by Football Insider, Liverpool are in the market for someone to compete with first-choice Alberto Moreno on the left side of the defence.

The Merseysiders are also monitoring Leicester’s Ben Chilwell and Lorient’s Raphael Guerreiro.

The left-back trio are on the radar of the Premier League giants as they step up plans to strengthen their squad in the summer transfer window.

A Liverpool source has told Football Insider that the club are compiling a dossier on Willems, who has won back his place for club and country after missing the first half of the season with a knee injury.

Willems, 21, has already amassed 171 senior club appearances and 16 Holland caps despite his tender age and is regarded as one of Europe’s finest emerging left-backs.

He is rated in the £11million bracket by PSV chiefs, even though his current contract expires in the summer of 2017.

In other Liverpool transfer news, Klopp has already begun to look towards a summer revamp with his scouts checking out a potential £12million player.