Peseiro is attending first tournament since he became Super Eagles boss two years ago.
The Nigerian team arrived in Côte d’Ivoire on Wednesday and wasted no time in initiating their preparations for the upcoming tournament.
“The training today was for recovery after the long trip, presentations, CAF meetings and the videos for everybody. Because of that we couldn’t do tactical and conditioning training to recover well for tomorrow’s practise,” Peseiro said after training session.
The 2013 winners will kick off their campaign with a crunch tie against Equatorial Guinea on Sunday.
“Of course, it is a difficult tournament. Equatorial Guinea did better than us in the last AFCON. It’s a good team but we want to win.
“We want to be one hundred percent focused, not only in the training, in the meals, rest, meetings. All the activities we must put our maximum focus on.”
Peseiro added that the players can’t afford to make errors during the game.
“This match, the next match we can not make mistakes, we have to put one hundred percent or more each one and do a collective game to win our first match. It’s important for us.
“We cannot have an excuse about the weather, we need to understand that and adapt well and do our best despite the weather and humidity,” The Portuguese concluded.