Ranked eighth in the World, hosts Canada came into this campaign with plenty of hype and ambitions to go far in this years Women's World Cup.
However, despite finishing top of their group, so far their form has been questionable, winning just one out of their first three matches.
An unconvincing 1-0 win over China gave them a perfect start but the Canadians left it late to bring home the points. An injury time penalty proved to be the difference between the two sides.
They were then forced to share points with both Netherlands and New Zealand, giving them just five points going through to the next round.
John Herdman, Canada’s head coach explained in his press conference that although he is happy with his players, more can be expected of this young Canadian side: “Top of the group – that’s a job well done.
"We really wanted to finish with 9 points, which we haven’t done, but most of all we wanted to finish first so that we could return to BC Place and we’ve done that so we’re happy."
John Herdman proud of his side's success
Herdman was said to be "very proud of all these young players," whilst being full of praise stating, "you either sink or swim and these girls are swimming, it's fantastic for me to see."
The Canadian coach admitted he's, "still learning," at this years competition, but remained confident ahead of the last 16 clash, warning his side, "you can't take anyone for granted and you can't take anyone lightly.
"We’ve won the group but we’re making things hard for ourselves, we know that we need to work on a few things because the games that are coming up will be even harder.”
Switzerland enjoying debut World Cup
Facing them in Vancouver are World Cup debutantes Switzerland, who qualified for the round of 16 as one of four third-place finishers.
Their first World Cup campaign so far has been nothing short of a rollercoaster; winning just one of their games, they lost to both Japan and Cameroon but absolutely obliterated Ecuador in a 10-1 thriller.
Switzerland know they are lucky to have made it through to the knock out stages despite an inconsistent string of games, and now it is time to make it count.
Head coach, Martina Voss-Tecklenburg spoke in her press conference about how this game is a second chance that must be taken: “In our last group game we missed a lot of opportunities, after the first half there was a certain insecurity and we weren’t able to play a good aggressive game. There is no second chance in the next round so that is not acceptable.
"Perhaps we have been a bit too hectic in our first games, I try to influence the match from the outside as best as I can so I will continue to do so.
"We have another opportunity to get it right in Vancouver, we will give our best against Canada.”
A close game is to be expected
The last time these two unpredictable sides encountered each other was a double-header just days apart in 2011. It saw a 2-1 win for Canada in the first game and then a 1-1 draw, suggesting Sunday’s show down in Vancouver will be if anything, a close one.
Both sides are attacking minded, suggesting an explosive start, but the favourites will be group leaders Canada who have the advantage of playing their first knock out stage on home soil.