Arsenal winger, Alex Iwobi, has withdrawn from the Nigerian squad due to injury ahead of the doubleheader against the Indomitable Lions of Cameroon.
Aaron Samuel has been called up in his place.
Iwobi has played only 11 minutes in the Premier League this season and will miss the 2018 World Cup qualifiers due to a thigh problem.
Meanwhile, the invited players are expected to hit the camp as final preparations for the the clash against the African champions kick in.
Nigeria, leaders of their group after two matches, host Cameroon in Uyo on September 1 before travelling to Yaounde three days later for the return leg.
