The Golden Eaglets lost their 100% record tonight when they fell 2-1 to Australia at the U17 World Cup in Brazil.
Nigeria won the group with six points from three matches, while Australia could still go through as one of the third-best losers.
Ecuador finished second in Group B after they pipped Hungary 3-2.
Nigeria will have to blame selfish play, poor finishing and inspired goalkeeping by Australia’s Adam Pavlesic for their first loss in Brazil.
The Eaglets dominated possession, created the better chances, but for wayward finishing they ought to have posted a comfortable lead against the Australians in the first period.
It was an open and enjoyable game as both teams tested the opposing defences at will.
Australia went in front against the run of play when striker Noah Botic slotted home from a pass delivered from the left on 13 minutes.