The Olympic Eagles need a win against Amaglug-glug to guarantee their place in the competition's semi-final on Friday evening
Having bounced back from their stuttering U23 Africa Cup of Nations start with a 3-1 defeat of Zambia, Nigeria lock horns with South Africa in their last group game.
Another defeat for Imama Amapakabo’s side against Amaglug-glug on Friday will bring to an end their Tokyo 2020 Olympic Games ambition.
South Africa are Group B leaders with four points after two outings, and they need a draw to guarantee their place in the next stage.