Lagos - 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.
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"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.
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