So here are three things we learnt:

1. Defending fixes

The Matildas defence has always been a point of discussion among fans and media. Firstly, it's not an area of the field where there is depth and if there are players who could possibly fill in, they haven't had enough experience (with the exception of Laura Alleway).

While Gema Simon has been around the Matildas squads for the last 12 months leading into that, she has had a two-year period of injuries while Teigen Allen has just been brought back into the squad after an extended period away. 

Secondly, it's an area of the field that needs to work on tightening up so they don't get caught out by fast-paced forwards.

This slow transition was exposed slightly by Football Fern Sarah Gregorius on Thursday night but the clinic passing from Korea Republic on Sunday showed that this was an issue. 

It even led to the only goal the Matildas have conceded so far. While the defence doesn't send alarm bells ringing if they want to go further in a World Cup, it's an area that needs to be tinkered with. 

"We always talk about the attacking quality we have and how we want to play our football but it shouldn't be an emphasis on that box than the one we defend," Matildas coach Ante Milicic said.

"I said at halftime the main thing is that we don't concede because it's an area we want to work on and we have spent a bit of time.

"There is a lot of work to do in our defensive structure and shape, even tonight we were very vulnerable in the transition stage phase."