The Super Eagles camp in Marrakech, Morocco opened on Tuesday with 10 players in the camp.
Chippa United goalkeper Stanley Nwabali, midfielder Alex Iwobi, Nantes winger Moses Simon, defenders Jamilu Collins and Bruno Onyemaechi are among the early arrivals in camp.
Other early arrivals are; Cyriel Dessers, Nathan Tella, Calvin Bassey, Semi Ajayi and Fisayo Dele -Bashiru.
Other invited players are expected to hit camp later today.
The Super Eagles will have their first training session later today at 4.30pm local time.
Former winger Finidi George is temporarily in charge of the team pending the appointment of a substantive head coach.
Nigerian will slug it out with eternal rivals Black Stars of Ghana in their first friendly at the Grand Stade de Marrakech on Friday.
The former African champions will face the Eagles of Mali in the second friendly next week Tuesday at the same venue.