Try some of these, all 'wonder kids' or youngsters with massive potential, you might need the 'large database' on if you want to find all of them
Argentina:
Ever Banega
Brian Sarmiento
Mateo Musacchio
Emiliano Insua
Maximiliano Oliva
Angel di Maria
Pablo Piatti
Jonathan Cristaldo
Diego Buonanotte
Jose san Roman
Lucas Trecarichi
Yoel Goldstein
Marco Ruben
Maximiliano Moralez
Alejandro Gomez
Oscar Ustari
Neri Cardozo
Matias Cahais
Mauro Zarate
Sebastian Leto
Australia:
Dean Bouzanis
Belarus:
Anton Putilo
Yegor Filipenko
Bosnia:
Miralem Pjanic
Brazil:
Cassio (PSV)
Marcelo Grohe
Mauricio (Fluminense)
Guilherme (Vasco)
Carlos Eduardo (Hoffenheim)
Bruno Formigoni
Rafinha (Cruzeiro)
Anselmo Ramon
Alan Kardec
Alex (Vasco- AM RLC F)
Thiago (barca)
Leyrielton (Goais)
Sidnei (Internacional)
Bruno Mezenga
Welliton
Rafael Forster
Fabio (Fluminense D/WB/AM L)
Lulinha
Alan (Guaranin S)
Alexandre Pato
David (Palmeras DC)
Felipe (Santos)
Guilherme (Cruzeiro)
Breno (Sao Paulo)
Sergio Mota
Roberto (Atl. Paranaense)
Choco (Atl. Para.)
Celsinho (Lokomotiv Moscow)
Eduardo Ratinho (Corinthians)
Willian (Shakhtar)
Kerlon
Denilson (Arsenal)
Anderson (Man UTD)
Joao Carlos (Atl. Para.)
Ramon (CSKA Moscow)
Thiago (Sao Paulo)
Canada:
Asmir Begovic
Chile:
Nicolas Milian
Arturo Vidal
Colombia:
Cesar Lindado
Cristian Nazarith
Juan Pablo Pino
Yessu Cabrera
Congo:
Fabrice N'Guessi
Costa Rica:
Angulo Marvin
Croatia:
Ivan Rakitic
Denmark:
Kasper Schmeichel
Nicklas Bendtner
England:
Nedum Onuoha
Michael Mancienne
Danny Welbeck
Nathan Delfouneso
Scott Sinclair
Fabrice Muamba
Krystian Pearce
Jack Hobbs
Michael Woods
Andy Carroll
Michael Johnson
Theo Walcott
Jose Baxter
Preston Edwards
Giles Barnes
Finland:
Jukka Lehtovaara
Patrik Lomski
Lauri Dalla Valle
France:
Riou Remy
Bacundji Ca
Karim El-mourabet
Vincent Acapandie
Garry Bocaly
Kevin Monnet-Paquet
Gabriel Obertan
Loic Abenzoar
Leo Schewechlen
Armand Traore
Anthony Scibe
Steven Thicot
Benoit Costil
Distel Zola
Pierre Ducasse
Damien Le Tallec
Matthieu Saunier
Adel Taarabt
Frederic Duplus
Omar Benzerga
Joris Delle
Mamadou Sakho
Aurelien Teaudors
Henri Saivet
Serge Gakpe
Dorian Dervite
Germany:
Marko Marin
Toni Kroos
Manuel Fishcher
Kevin-Prince Boateng
Serdar Tasci
Sami Khedira
Greece:
Sotiris Ninis
Netherlands:
Genero Zeefuik
Ryan Babel
Georginio Wijnaldum
Israel:
Guy Asulin
Ben Sahar
Maor Bozaglo
Oded Gavish
Yuval Gogelman
Dor Malul
Toto Tamuz
Italy:
Fernando Forestieri
Simone Esposito
Marco Davide Faraoni
Francesco Bolzoni
Alessandro Tula
Andrea Russotto
Andrea Consigli
Sebastian Giovinco
Fabiano Santacroce
Davide Di Gennaro
Japan:
Takayuki Morimoto
Mexico:
Hector Moreno
Alfonso Blanco
Ever Guzman
Edgar Andrade
Cesar Villaluz
Sergio Arias
Patricio Araujo
Omar Esparza
Christian Sanchez
Carlos Vela
Miguel Angel Fraga
Andres Guardado
Giovani Dos Santos
Jose Rafael Alamo
North Ireland:
Jonathan Evans
Craigh Cathcart
Nigeria:
John Obi Mikel
Peru:
Omar Andrade
Reimond Manco
Portugal:
Adrien (Sporting)
Helder Barbosa
Romania:
Bogdan Stancu (Unirea Urziceni)
Eric Bicfalvi
Gabriel Torje
Stefan Radu
Russia:
Anton Sosnin
Alexandr Prudnikov
Spain:
Antonio Adan
Emillio Nsue
Antonio Barragan
Cristian Portilla
Adrian (Deport.)
Sunny
Francisco Merida
Marc Crosas
Victor Diaz
Iriome
Aaron
Carlos Saez
Samuel (Rayo)
Alberto Bueno
Juan Manuel Mata
Victor Merchan
David Moreno
Bojan
Adrian Murcia
Ignacio Camacho
Iago
Oier Olazabal
David de Gea
Aquino
Pichu Atienza
Edu Valle
Obama (Murcia)
Daniel Pacheco
David Rochela
Javi Garcia (Osasuna)
Switzerland:
Johan Djourou
Charles-Andre Doudin
Turkey:
Turan Arda
Parlak Ilhan
Karadeniz Batuhan
Tevfik Kose
Sultan Cem
US:
Freddy Adu
Jozy Altidore
Wales:
Max Noble
By position
GK:
Sergio Arias
Oier Olazabal
Costil Benoit
Antonio Adan
Dean Bouzanis
Oscar Ustari
Miguel Fraga
Jose Rafael Alamo
Felipe (Santos)
Asmir Begovic
Preston Edwards
Adrian Murcia
Joao Carlos (Alt. Para.)
Anthony Scribe
Jukka Lehtovaara
Joris Delle
Alfonso Blanco
Cassio (PSV)
David De Gea
Marcelo Grohe
Andrea Consigli
Defenders: SW-R-L-C
Leo Schwechlen
Arturo Vidal
Steven Thicot
Oded Gavish
Yuval Fogelman
Patricio Araujo
Mateo Musacchio
Christian Sanchez
Victor Diaz
Michael Mancienne
Matthieu Saunier
Frederic Duplus
Nedum Onuoha
Loic Abenzoar
Garry Bocaly
Dor Malul
Eduardo Ratinho
Antonio Barragan
Jose San Roman
Armand Traore
Leyrielton (Goias)
Marvin Angulo
Micah Richards
Lorenzo De Silvestri
Emiliano Insua
Matias Cahias
Mamadou Sakho
Stefan Radu
Maximilliano Oliva
Omar Esparza
Fabio (Flumiense)
Andres Guardado
Domenico Criscito
Breno (Sao Paulo)
Obama (Murcia)
Krystian Pearce
Jack Hobbs
Sidnei (Internacional)
Dorian Dervite
Marco Davide Faraoni
Hector Moreno
Rafael Forster
Craig Cathcart
Jonathan Evans
Aurelien Teaudors
Alessandro Tula
David Rochela
Fabiano Santacroce
Karim El-Mourabet
David (Palmeras)
Serdar Tasci
Johan Djouru
Pichu Atienza
Yegor Filipenko
Cristian Zapata
Defensive Midfielder:
Pierre Ducasse
Sunny
Denilson
Sami Khedira
Javi Garcia (Osasuna)
Ever Banega
Distel Zola
Roberto (Alt. Para)
Omar Benzerga
John Obi Mikel
Marc Crosas
Fabrice Muamba
Francesco Bolzoni
Ignacio Camacho
Bruno Formigoni
Bocundji Ca
Lucas (Liverpool)
Midfielder Centre
Edgar Andrade
Thiago
Adrien (Sporting CP)
Michael Woods
Michael Johnson
Eric Bicfalvi
Francesc Fabregas
Attacking Midfielder: R-L-C
Lionel Messi
Aaron Lennon
Jeremy Menez
Guy Asulin
Maximiliano Moralez (FC Moscow)
Turan Arda
Giles Barnes
Georginio Wijnaldum
Sotiris Ninis
Fabrice N'guessi
Simone Esposito
Serge Gakpe
Neri Cardozo
Vitor Merchan
Iriome
Cesar Villaluz
Anton Putilo
Reimond Manco
Nicolas Millian
Theo Walcott
Celsinho
Ryan Babel
Yessu Cabrera
Juan Pablo Pino
Henri Saivet
Alex (Vasco)
Gabriel Obertan
Danny Welbeck
Takayuki Moritomo
Gabriel Torje
Patrik Lomski
Davide Di Gennaro
Hatem Ben Arfa
Freddy Adu
Helder Barbosa
Juan Manuel Mata
Sebastian Leto
Giovanni Dos Santos
Francisco Merida
Angel Di Maria
Sergio Mota
Iago
Damian Escudero
David Moreno
Lucas Trecarichi
Brian Sarmiento
Carlos Eduardo (Hoffenheim)
Sebastian Giovinco
Kevin Monnet-Paquet
Scott Sinclair
Mauricio (Flumiense)
Aquino (Murcia)
Samir Nasri
Giuseppe Rossi
Sergio Aguero
Max Noble
Yoel Goldstein
Lulinha
Alejandro Gomez
Marko Marin
Samuel (Rayo)
Cristian Portilla
Willian (Shakhtar)
Maor Bozaglo
Pablo Platti
Adel Taarabt
Diego Buonanotte
Miralem Pjasnic
Anton Sosnin
Anderson (Man)
Kevin-Price Boateng
Toni Kroos
Rafinha (Cruzeiro)
Ivan Rakitic
Carlos Saez
Fernando Forestieri
Jose Baxter
Damien Le Tallec
Kerlon
Welliton (Moscow)
Lauri Dalla Valle
Eden Hazard
Aaron
Alberto Bueno
Guilherme
Carlos Vela
Choco (Alt. Para.)
Ramon (CSKA Moscow)
Forward/Striker:
Cristian Nazarith
Parlak Ilhan
Cesar Lindado
Jonathan Cristaldo
Oscar Trejo
Edu Valle
Alexandre Pato
Bogdan Stancu
Alexandr Prudnikov
Jozy Altidore
Bojan
Nicklas Bendtner
Bruno Mezenga
Thiago (Sao Paulo)
Emilio Nsue
Alan Gardec
Karadeniz Batuhan
Toto Tamuz
Alan (Guarani)
Andy Carroll
Marco Ruben
Sultan Cem
Andrea Russotto
Omar Andrade
Adrian (Deport.)
Vincent Acapandie
Tevfik Kose
Nathan Delfouneso
Ramon Anselmo
Charles-Andre Doudin
Ever Guzman
Ben Sahar
Manuel Fischer
Mauro Zarate
Genero Zeefuik
Daniel Pacheco
Karim Benzema
Eduson Cavani
Aaritalo