Super Eagles' coach, Gernot Rohr is optimistic of a better performance in Nigeria's second game of the on-going African Cup of Nations against Guinea.

The Eagles struggled to beat Burundi 1-0, but the team attributed the stuttering performance to the sickness suffered by key players just before the opening Group B fixture played at the Egyptian Mediterranean city of Alexandria on Saturday.

The 1-0 victory has placed Nigeria on top of the Group B table as Guinea and Madagascar played out a 2-2 draw in the second game of the group.

At the post-match conference on Saturday, Rohr said he knew the match against Burundi would be difficult for his players, as half of the team was down with fever.