Nigeria, June 1 -- It was a shocking win, but it was also a comfortable victory for Ladan Bosso and Nigeria's U-20 team on Wednesday as they dispatched hosts Argentina to book a quarterfinal ticket where they will have no fear of facing either South Korea or Ecuador.

While Argentina had 66 per cent ball possession and 19 goal-scoring chances, the Flying Eagles were clinical and proved to be more technically savvy in deploying a system that comfortably kept Argentina at arm's length.

1. Team's total defensive mindedness

Ladan Bosso set up his team in a familiar 4-3-3 shape. However, the formation was more akin to a 4-2-3-1 with Ibrahim Muhammad and Jude Sunday on the flanks. Sunday and Muhammad were placed more defensively, with Lawal F...