The Super Eagles had their training session at the Hanwell Town Football Club training facility on Monday night ahead of their opening fixture at the Unity Cup invitational tournament against the Black Stars of Ghana.
Twenty two players took part in the training session under the supervision of head coach Eric Chelle.
Four more players, Maduka Okoye, Amas Obasogie, Christantus Uche and Tolu Arokodare are still expected in camp.
The Super Eagles will have another training session at the facility on Tuesday.
They will take on the Black Stars at the Gtech Community Stadium, Brentford, London, on Wednesday.
The encounter will kick off at 7 pm Nigerian time.
The outcome of Wednesday’s game will determine who advances to the final on Saturday, 31 May, also at the Gtech Community Stadium.
Nigeria’s second match will be against either Jamaica or Trinidad & Tobago, who face each other on Tuesday, 27 May.