Japan have a perfect record at the 2015 Women's World Cup: They are the only remaining team to have won all five of their encounters thus far.
In fact, they have not lost a World Cup game since the group stages of the 2011 World Cup, in which they triumphed after a penalty-shootout victory over the USA in the final.
The last team to beat them at the World Cup were England, their opponents in Wednesday's semi-final in Edmonton.
On that occasion, in Group B in 2011's tournament in Germany, the Three Lionesses prevailed 2-0.
However, the Japanese, as defending champions and the fourth-ranked side in the world, are slight favourites to book themselves a place in the final of this year's tournament.