Weah, Lainez and the players to watch at the Under-20 World Cup

Both the brain and the engine of the Albiceleste's midfield, the Boca Juniors man is looking to make up for lost time after missing the Under-20 South American Championship in January through injury.

Equally adept at creating the tempo of the game with his passing as he is at breaking up the opposition's play, Almendra has emerged as a target for Napoli, and impressive performances in Poland could see him secure a switch to Serie A.

The top scorer at this year's Under-20 South American Championship with six goals, Campana led Ecuador to a surprise title in Chile with his ruthless finishing.

He may not be the most pleasing forward on the eye, but his ability to find the net with regularity means he has reportedly appeared on the radar of Atletico Madrid and Inter.

Having enjoyed a breakthrough campaign at Paris Saint-Germain, making 25 Ligue 1 appearances, Diaby heads to Poland as the man whom France believe will be able to fire them to glory.

Most comfortable playing off the left-hand side, he possesses a willingness to beat a man and drive into the box. A real handful for defenders.

Nineteen-year-old Florentino has established himself within the Benfica first team during their run to the Portuguese title, and has already been linked with the likes of Manchester City and Barcelona.

A deep-lying midfielder, he is adept at winning the ball back and distributing passes and should be one to watch in Poland.

Despite having missed almost the entire Ligue 1 season with a serious knee injury, Lyon still offered Gouiri a new contract in January, such is their belief in the young forward.

A powerful striker, he and Diaby will likely provide the main goalscoring threat for France as they look to emulate the senior international side's achievements in Russia last year.

Seen as the best talent to come out of South Korea since Son Heung-Min, Lee rose to fame in his homeland when he featured in a football-related reality television programme at the age of six.

He has already made a dozen appearances for the Valencia first team and has an €80 million (£70m/$89m) release clause written into his contract, so highly is he regarded.

The son of former Leeds United and Manchester City defender Alf-Inge Haaland, the 18-year-old forward has previously been linked with moves to Manchester United and Juventus.

A strong striker who does not lack for pace when running with the ball or in behind, he left Molde - where he played under Ole Gunnar Solskjaer - in January to join Red Bull Salzburg.

The Watford forward spent last season on loan with Huesca in La Liga, where he scored goals against both Barcelona and Real Madrid despite their disappointing season.

Cucho has been likened to Sergio Aguero in his style while he scored twice on his debut for the senior Colombia national team earlier this year.

Voted Player of the Tournament at last year's Under-19 European Championship, Jota has not made an impact at senior level as yet, but will hope the tournament in Poland will act as a springboard for his career.

Able to dribble at speed and with a keen eye for goal, comparisons to Cristiano Ronaldo have been made to a player who has been linked with Barcelona and Bayern Munich.

Able to play off the left wing or through the middle as a playmaker, Lainez has been tipped to become one of the best players of his generation, with some even likening his style to Lionel Messi.

He made the move to Europe in January as he joined Real Betis and will have to be in top form if Mexico are to challenge in Poland.

A run of six goals in seven appearances for Lille around the turn of the year saw Leao enjoy a breakthrough season in Ligue 1.

He will likely be the focal point of the talented Portugal attack, with Everton set to be watching him closely having shown an interest previously.

Having been signed by Real Madrid last summer before being loaned out to Leganes, Lunin has been marked as a potential future No.1 at Santiago Bernabeu.

Potentially the best goalkeeper on show in Poland, he has already made his debut for Andriy Shevchenko's senior national side.

Likened to Paulo Dybala by many in his homeland, Maroni will likely play just behind the forwards for the Albiceleste in Poland.

He is currently owned by Boca Juniors but has been watched by both AC Milan and Inter, with others likely to follow in their footsteps if he shines this summer.

After scoring five goals for Frosinone in Serie A this season, Pinamonti will lead the line for the Azzurrini as they look to cause a surprise in Poland.

The hosts' star player is centre-back Walukiewicz, who has been a rock at the heart of the defence for Pogon Szczecin during a strong domestic campaign.

Currently out on loan, he is expected to return to Cagliari in Serie A after the culmination of the tournament and has been likened to compatriot Kamil Glik.

Given his famous father, there was always going to be attention on Weah, but what he has shown in his early years at Paris Saint-Germain and even during a brief loan spell at Celtic suggest he has a good career ahead of him.

Already a regular in the USMNT squad, he will spearhead Tab Ramos's side's push for the trophy in Poland.

Already a regular starter for Borussia Dortmund at the age of just 19, Zagadou stands out as probably the best defender on show in Poland.

Equally adept at centre-back or at left-back, he will likely partner Arsenal target William Saliba at the back in what is the strongest side on paper at the tournament.