Head coach of the Super Eagles, Gernot Rohr, has said his team was suffering from fatigue, in their 1-1 draw against Cameroon in Yaounde on Monday.
Nigeria took the lead in the first half through Simon Moses, before the hosts equalized through a Vincent Aboubakar penalty with 15 minutes left.
Rohr, who saw his team crush Cameroon 4-0 on Friday, praised the Indomitable Lions for raising their game.
"It was a difficult match, but I expected that from a team that lost 4-0 just days before," Rohr said during his post-match press conference at the Stade Omnisport Ahmadou Ahidjo.
"They wanted revenge and they played well. They brought in three fresh players, while we had the same team that played on Friday. We got tired in the second half."
He added: "Before the two games I wanted four points, so I'm happy we got what we targeted. Tonight's match was not about spectacle, we just wanted to get a result. If they didn't have that penalty we'd have got all three points."