Andy Robertson's recent injury has definitely highlighted for Liverpool the fact that the Scotsman will not be around forever. Sooner or later like every player, Jürgen Klopp will have to find an heir to Robertson's throne.

Undoubtedly one of his finest acquisitions, Robertson has become one of the best players in the world in his position over the last half a decade. He has dominated the best players in world football and has become an indomitable member of the Liverpool starting XI.

Key on and off the pitch, Robertson will be a difficult player to replace. But it is something Liverpool has to start thinking about. Next year he will be turning 30 years old, and that is roughly when the hourglass starts to turn and a footballer's career becomes a race against time.

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So it should come as no surprise that Liverpool is looking at potential long-term solutions and heirs to Robertson's throne. The latest name being linked with a move to Anfield is one who could instigate Klopp and Liverpool entering a new market which has only recently opened up for Premier League clubs in the last few years.

According to Calciomercato, Liverpool is interested in Boca Juniors' teenage sensation Valentín Barco. He is a new name and a bit of an unusual one given his playing style is distinctly different from Robertson, but he is certainly talented.

Barco is a very offensive-minded player, who as well as playing left-back and left-wing-back, has regularly been used by Boca Juniors as a left-winger as well. Defensively, he doesn't really stand out in the league among his positional peers just yet.

For example, for defensive duels won among full-backs, Barco ranks in 99th place among 114 players in total, winning 59.6 per cent of his defensive duels as per Wyscout. Meanwhile, when it comes to possession-adjusted interceptions, Barco is currently averaging the second-fewest among his positional peers at 3.51 per 90 minutes.

Liverpool transfer Valentín Barco
Valentín Barco is on Liverpool's transfer radar.

Given those numbers, there will be some question marks about whether or not he could step up to a challenging defensive role at Liverpool. But on the flip side, Barco does show excellent quality on the ball. Among his positional peers, nobody averages more dribbles in the Argentine League (7.24 per 90) and he ranks in the top 15 players overall. The same applies for progressive runs (3.18 per 90).

He is very clearly an explosive player who accelerates well and who would fit into Klopp's quick counter-pressing and attacking style. At 19 years old, there is space to improve him and develop the defensive side of his game as well.

Previously, a player like Barco would have been inaccessible for Liverpool given EU and Premier League regulations making it difficult for South American players to attain work permits. But the new point-based system introduced after Brexit has changed all of that and opened up a new market in South America for English clubs.

Liverpool is yet to enter that market, but the club would be smart to do so. Players like Barco are huge talents and available at reasonable rates, not the inflated prices that are touted around for similar talents in Europe. Moving for Barco would therefore be a frugal business decision and one with few risks involved, which is why a transfer makes sense.