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Diego Leon Man Utd NXGN GFXGetty/GOAL

Diego Leon: The ultra-athletic, goal-scoring teenager who Man Utd believe can solve their full-back woes

Ever since Patrice Evra left the club in 2014, Manchester United have had a problem at left-back. The position has become so neglected that the team have essentially been operating without one for the last 12 months, with Tyrell Malacia struggling to recover from two nightmare knee surgeries while Luke Shaw is perpetually injured.

Being so ill-equipped in such a key area has hurt the team deeply, and was a big factor in them enduring their worst-ever Premier League finish last season, as well as their dismal current campaign. Diogo Dalot has had to deputise on the left when he is much better suited to the right, and United's need to address their dearth of left backs has been heightened by Ruben Amorim's use of a back three and wing-backs, which places a greater physical demand on those chosen for the role.

Thankfully, the club have prioritised one left-back who they believe will be one of the stars of the future in Diego Leon, the Paraguayan teenager who is blazing a trail in his first season in professional football with Cerro Porteno and who has agreed to join United in the summer. The 17-year old is a physical specimen who has the exact attributes to shine in Amorim's side, a powerful and ambitious player capable of shuttling up and down the flank while providing a real threat.

Leon is the latest youngster United have signed on the cheap after plucking Chido Obi-Martin from Arsenal and wrapping up a deal for Mali Under-17s star Sekou Kone last year, having had great success bringing in Alejandro Garnacho from Atletico Madrid in 2020.

GOAL has the lowdown on the player who is set to become the first signing of the Amorim era, a player who could become a crucial part of the Portuguese's project for years to come:

  • Where it all began

    Leon grew up in the Paraguayan city of Yguazu, near the borders of Argentina and Brazil and close to the iconic Iguazu waterfalls. But like many young South American footballers, his family often struggled to make ends meet.

    His mother Brigida Blanco told Cerro Porteno's official media: "We often didn't have money to buy him a ball, so he'd grab a piece of fabric, roll it up and play with it. He would always say, 'one day I'm going to play for Cerro', and now he's doing it."

    Leon joined Cerro Porteno's academy at U14 level and was called up to the senior team last year for their mid-season training camp in Malaga.

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  • The big break

    Leon made his first-team debut in the opening game of the 2024 Clausara season against Sportivo Ameliano, and afterwards confessed that he was so excited he couldn't sleep. Despite the sleepless night, his first game could hardly have gone better as he scored the only goal in a 1-0 win, creeping in at the back post to head home.

    He scored again in his third game as a professional against General Caballero JLM with a strike that really made people sit up and notice, surging forward through the middle of the pitch, beating one defender and then smashing the ball into the net from just outside the area.

  • How it's going

    Despite his young age, Leon locked down his place in the Cerro Porteno side, starting 18 of the team's 22 league games in the Clausura. A few weeks after making his debut, he was named among the top 10 full-backs under the age of 21 by the CIES Football Observatory, and it did not take long for his name to be linked with Europe's top sides.

    Arsenal entered talks with Cerro Porteno over signing him in December, but United beat the Gunners to the punch, agreeing an initial fee of $4m (£3.2m) plus a potential $4.5m in add-ons.

  • Biggest strengths

    Described as a "strapping lad" by South American football expert Tim Vickery, Leon does not look like a 17-year-old at all (aside from his braces) due to his outstanding physical prowess. He is pacey and powerful, but he also has impressive technical ability, being adept at keeping the ball under control while running at breakneck speed.

    He is an attacking full-back renowned for getting into the final third, knocking in crosses and also getting on the end of them.

  • Room for improvement

    Leon made unwanted headlines in October with a spectacular long-range own goal against Sportivo Luqueno which demonstrated an occasional tendency to lose his head and make rash decisions on the pitch. As with many full-backs renowned for attacking, he needs to work on his defensive attributes.

    Former coach Manolo Jimenez said: "He is the proto-type full-back with a lot of attacking flair and he still has a lot of time to improve his defensive facets, that's what he needs to focus on. I'm sure that at United they'll work on developing it. When he starts to make clearer decisions he's going to be a great player and he won't commit those errors that are typical given his age and inexperience."

  • Marcelo Real MadridGetty

    The next... Marcelo?

    Leon's blend of athletic prowess and technical ability, combined with a precocious knack for scoring goals as a teenager, brings back memories of Marcelo's stunning rise in Brazilian football, leading to Real Madrid signing him from Fluminense in January 2007 when he was just 18.

    Marcelo also prioritised his attacking play over his defensive work, but he had the physical prowess to get back to his own area when necessary.

  • What comes next?

    Leon is unable to join United until he is 18, meaning he will stay at Cerro Porteno for the 2025 Apertura season, which ends in late May. He will also have the chance to realise his dream of playing in the Copa Libertadores, with his side facing qualifiers in February. It is expected that he will then be sent out on loan to another European side to get more experience before joining the Red Devils' first team ahead of the 2026-27 campaign.

    Leon was recently called up to the Paraguay U20s and he will be hoping to make his way into the senior squad for the remaining World Cup qualifiers. Paraguay are on course to qualify for the tournament for the first time since 2010, when they reached the quarter-finals.