Japan will be the first side to secure their place in knockout stages, if Spain earn at least a point against Zambia later.

Costa Rica will be eliminated from the World Cup if Spain avoid defeat.

Japan get the job done

Since stunning the football world by beating the United States in the 2011 final, Japan have underwhelmed on the global stage.

But following the Tokyo Olympics - where Japan were eliminated in the quarter-finals on home soil - Futoshi Ikeda was appointed manager and has put together a side which has impressed with its attacking, possession-focused football.

Japan will face much tougher tests than Costa Rica and Zambia in their opening game, and they will need to be more clinical than they were at Dunedin Stadium. However, two wins and seven goals cannot be ignored.

This game was settled by the 27th minute - first Naomoto found the far left corner with a low shot from the left of the box, before Fujino shrugged off a tackle on the right wing, cut into the box and beat keeper Daniela Solera at the near post for her first Japan goal.

It was a moment of redemption for Fujino following a bizarre incident on 15 minutes where she prevented team-mate Risa Shimizu scoring with an inadvertent sliding tackle as both went to finish a chance.

Solera shines but Costa Rica outclassed

Costa Rica were outclassed here just as they were in their opening loss to Spain.

Nervous in possession, they were not technically able enough to play out from the back and inaccurate with long balls, constantly ceding possession to their opponents.

Solera - who has now made a tournament-high 19 stops at this World Cup - was once again the only factor between Costa Rica and a truly embarrassing scoreline.