The Indomitable Lions head to Stade Ahmadou-Ahidjo following their 4-0 defeat to the Super Eagles – and they hope to grind out a result despite their fading World Cup qualification hopes.
But Siani insisted that they have taken the Uyo disappointment behind them and are looking for a positive outing against Gernot Rohr’s men.
“We have to do everything to possible to win the game,” he told media.
“Against Nigeria, we must play as a team and do the basic things, play easy and simple football.
“The African Cup of Nations and Confederations Cup are over and all we are thinking about is [the game against Nigeria] and get the much-needed result.
“The most important thing is to come back [despite the embarrassing first leg] like we did before the 2017 Afcon. We will play simple, stay humble and motivate ourselves.”
Cameroon are third in Group B with two points from three games – seven points behind leaders Nigeria.