Gernot Rohr has charged the Nigeria national team to step up their game when they meet Tunisia in a friendly on Tuesday.
The West Africans lost 1-0 against Algeria on Friday in another build-up game which left many fans frustrated at the performance of the Super Eagles.
The defeat also ended the fine form of the three-time African champions, who had been unbeaten in their previous five games.
The Super Eagles were without some of their key players in the encounter like Leicester City’s Wilfred Ndidi, Rangers’ Joe Aribo, Galatasaray’s Oghenekaro Etebo and Napoli’s Victor Osimhen due to a number of reasons.