Allnigeriasoccer.com transfer market expert picks five Nigeria Under 20s stars European scouts should keep eyes on at the Fifa Under 20 World Cup which has already started in New Zealand.

1) Isaac Success ( Granada, Spain)
Comments :  The 19 - year - old striker is being tracked by Inter Milan and Monaco ahead of the reopening of the transfer window. And there is talk that Barcelona posted their trusted scout to run the rule over him in his first few months in Andalusia.

The BJ Foundation product has given everyone an insight of what to expect from him in New Zealand by scoring tons of goals for the Nigeria Under 20s in training games ahead of the opener against Brazil.

Success has proved to be a tournament player, having emerged top scorer at the 2013 CAF U17 Championship and netting 2 goals in his first two games at the Fifa U17s before injury ruled him out of the competition in the United Arab Emirates.

Market Value : €8 million

2) Kelechi Iheanacho (Manchester City, England)
Comments : He stepped down from the shadows of Isaac Success at the 2013 Fifa Under 17s to emerge the Golden Ball winner of the tourney.

There had been doubts surrounding his fitness ahead of the Fifa U20s but he scored goals aplenty in the month of May to put those suggestions to bed.

Kelechi Iheanacho is being coveted by clubs in the English Championship, with a view to a loan deal in the summer.

Market Value :  €4.5 million

3) Moses Simon ( Gent, Belgium )
Comments :  We have heard so many good things about this lad and they are all true. Has spent less than 18 months in Europe but was one of the key players for Gent, who won the Jupiler League for the first time since their formation.

Despite having 17 games under his belt, reputable Belgian media outlets still picked him in their Team of the Season.

The Golden Boot Soccer Academy product is on the radar of clubs in the English Premier League, Bundesliga and Super Lig ahead of the reopening of the transfer window.

Market Value : €7 million

4) Musa Yahaya ( Tottenham Hotspur, England)
Comments : Nicknamed the Nigerian Neymar and not for nothing; possesses trickery and pace plus has an eye for goal.

Scheduled to sign a professional contract with Spurs on January 2, 2016 but the question remains whether the Londoners will have him in their ranks by that time.

Another tournament player, he is expected to excel for the Flying Eagles in New Zealand.

Market Value : €3 million

5) Akinjide Idowu ( Nigeria Youth Soccer Academy, Calabar)
Comments : The defensive midfielder was one of the unsung heroes in the Flying Eagles African Youth Championship triumph.

Despite the arrival of the foreign - based professionals, Idowu will not be cast aside as he is expected to play a big role in New Zealand

The greatest endorsement of his qualities is that Italian Serie A side Udinese will be sending their scouts to run the rule over him in New Zealand. Glasgow Celtic are also interested.

Market Value : €1.5 million