Wales star Jamie Roberts says it's important his team 'keep smiling' ahead of their game against Australia at the Millennium Stadium.
If the Wallabies win, Wales will drop to ninth in rugby's world rankings and be bracketed as a tier-three nation for the 2015 World Cup pool draw on Monday.
Roberts said: "It's important we continue the upward curve from our second half performance against New Zealand last weekend.
"We've had a kick up the backside already in terms of knowing what we need to do in the Six Nations later this season.
"The boys are well aware of that, but we are not looking beyond Saturday at the moment."
So far in the Autumn Series Wales has lost successively to Argentina, Samoa and the All Blacks.
Along with the losses, the team's been hit by a crippling injury list which has included George North, Adam Jones, Alun-Wyn Jones, Dan Lydiate, Bradley Davies, Aaron Jarvis, Richard Hibbard or Josh Turnbull.
Roberts is still standing despite suffering concussion against the Pumas and then being forced off inside 20 minutes of the All Blacks clash due to a hip injury.
He added: "We want to beat these guys on the weekend, and anything less than that would be massively disappointing. We know the level we need to play at.
"It all comes from crossing that gain-line with your big ball carriers and we did that in the second half last week. We didn't do it in the first two games against Argentina and Samoa."
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