Golden Eaglets will have to submit a provisional squad of 60 players to FIFA not later than September 26 ahead of the U17 World Cup in Brazil, according to coach Manu Garba.
The Eaglets have been in training camp in Abuja since last month.
They are due to feature in a pre-World Cup tournament in Turkey between September 20 and 28.
The mandatory MRI age test will conducted for the players selected for the World Cup both in Nigeria and Brazil.
The five-time world champions are drawn against Hungary, Australia and Ecuador in the first round of the World Cup.
