Iheanacho is upbeat about the Super Eagles’ chances of making it to the last sixteen.
The South Americans are on the brink of elimination from the World Cup after their humiliating 3-0 loss to Croatia on Thursday.
”They are a strong team as you know, we have played against them and we won, they wanted us to beat Iceland so that they come at us,” Iheanacho told reporters in the mixed zone.
”It is going to be a difficult game for them, we have to fight together and do everything possible to beat them in that game despite they have good players and are a quality side. We need to show them we are from Nigeria.”
The Super Eagles landed in Saint Petersburg at approximately 19:25 hours local time on Sunday evening.
They will resume training for the match against Argentina tomorrow.
Ahmed Musa who scored Super Eagles winning goal against Iceland has vowed that the Super Eagles will beat Argentina in the last group match at the 2018 World Cup in Russia.
Musa said they are confident of defeating the South Americans after their decisive 2-0 win against Iceland on Friday in Volgograd.
Musa was the hero for Nigeria as his second-half brace gave his side the all-important win.
Argentina was held to a 1-1 draw by Iceland and suffered a 3-0 trouncing in the hands of group leaders, Croatia.
Jorge Sampaoli’s men must now beat the Super Eagles and hope Iceland do not get a favourable result against Croatia also on Tuesday, to proceed to the next stage.
“Football is a game. You win or you lose. But we are not going to St. Petersburg to lose,” Musa, who is Nigeria’s top scorer in World Cups with four goals, told FIFA media.
“We want to win and we know that we can do it.”