Liverpool have been heavily linked with current Paris Saint Germain left-back, Lucas Digne in recent weeks, sparking rumours over the future of current first-choice Alberto Moreno.

The current PSG manager, Laurent Blanc, has confirmed that the 22-year-old defender has asked to leave the French club, and Liverpool are reportedly leading the race to sign him - but what does it mean for Moreno?

Liverpool have signed numerous players

The Reds have seemed to strengthen in every part of the team so far this summer, except in the left-back area, which remains rather sparse.

Joe Gomez and Nathaniel Clyne were added to the squad to increase competition for the centre-back and right-back roles at the club, whilst James Milner and Roberto Firmino were purchased to strengthen the central and attacking areas of midfield.

Brendan Rodgers also significantly bolstered his side's attack by signing Danny Ings and Christian Benteke. Finally, Adam Bogdan was brought in to challenge Simon Mignolet for the number one spot.

However, Liverpool have yet to sign a new left-back after Alberto Moreno had what was deemed a poor season in his first 12 months on Merseyside, and the future of Jose Enrique looks uncertain - meaning the role is potentially there for the taking.

Who can play at left-back?

Moreno was signed last summer from Sevilla for £12 million this time last year, and fans saw, the now 23-year-old player, being their number one left-back for a long time.

However, after a poor first season, fans are calling for Liverpool to sign a replacement to challenge the Spaniard for a first-team place, which could help the Spaniard become a better player.

Jose Enrique was the back-up left-back for a long time at Anfield, but having been left at home during Liverpool's pre-season tour, it seems as though his career at the club is all but over, despite the fact that there hasn't been many reports linking him with any new suitors.

With Moreno injured and Enrique left at home, Joe Gomez filled in down the left in pre-season and impressed hugely. 

He was initially signed as a future prospect, but after some terrific performances during the tour, many fans believe he has what it takes to be the new left-back for Liverpool in the upcoming season, or at the very least a back-up - despite the fact right-back and central defence are more natural roles for the Englishman.

Liverpool fans are also eager to see the return of Jon Flanagan, who played a formidable part in Liverpool's title surge two seasons ago by filling in at left-back, but injury kept him out for the entirety of last season and he is set to miss a chunk of this season as well through the same problems.

Should Liverpool sign an alternative?

Moreno may have had a poor debut season, but he is still young and should be given time - after all, this comes only a year after he was brought in for a sizable lump sum.

Also, with Brendan Rodgers confirming that Gomez won't be going out on loan, perhaps he should be allowed to challenge for a place, rather than signing a new player.

That said - Liverpool should consider signing a new left-back, if Enrique is offloaded and Flanagan's issues persist, but if things stay as they are - then the Reds may have enough depth to survive.