Defending champions Nigeria visit Sudan on Saturday desperate for a first Group A win after a shock home loss to Congo Brazzaville and an uninspiring away draw with South Africa.
Coach Stephen Keshi recalled Victor Moses only for the in-form Stoke City midfielder to withdraw because of a thigh injury.
Out-of-contract Keshi, who is continuing at the request of the sports minister, has also had to contend with an outburst from Emmanuel Emenike.
The Turkey-based striker was angered by public criticism from the coach, who claimed Emenike lacked respect for fellow Super Eagles.
“I am honoured to play for Nigeria and respect the coach,” said Emenike. “If he feels I will not help achieve results or harmony, he can omit me.”
South Africa tackle Congo in Atlantic city Pointe-Noire, scene of ugly clashes between the countries in a 1998 World Cup qualifier won 2-0 by the central African Red Devils.
Several South Africans finished the game in blood-stained jerseys and TV coverage was temporarily halted when assault rifle-wielding soldiers threatened cameramen.