A win for Nigeria who started their campaign in the competition with a 4-1 win against Niger will see them book a place in the quarter-finals.
Aggreh said he and his colleagues are in high spirits going into the game and look forward to getting a positive result.
“We are all looking forward to the game with great enthusiasm,” Aggreh told Completesportsnigeria.com.
“Tunisia are one of the favourites in this competition and we expect a tough game against them.
“But we are confident of winning the game. We know what is at stake and we won’t let ourselves and the nation down.”