The Wallabies will lay everything on the line against Scotland, adamant that they will not rest star duo Israel Folau and David Pocock from the quarter-final showdown even if they are not fully fit. 
Folau (ankle) and Pocock (calf) are the two biggest concerns facing the Wallabies this week following their heroic defensive effort in a 15-6 win against Wales last weekend.
Fullback Folau is expected to recover in time for the clash against Scotland, even if he is on minimal training duties this week to lighten the workload on his ankle problem.
Pocock's challenge is bigger as Wallabies medical staff try to determine how bad his calf problem is. It's understood the Wallabies are confident Pocock has not torn any muscles.
But the pain was enough to force the hard-nosed flanker off the field in the second half against Wales.
The Wallabies have fallen on the perceived weaker side of the finals draw, with a quarter-final against Scotland. If they get through that, they will play either Ireland or Argentina. But still burnt by losing two of their last three games against Scotland, the Wallabies' defence coach Nathan Grey says they won't hold anything back on Sunday (Monday morning AEDT). "I think it's been pretty clear that we go full-on every game we play. If you get the opportunity to wear that gold jersey, you take it and cherish it," Grey said.
"When the [game-day squad] is selected, we'll be picking every gun we've got. We know at this stage of the competition it's do or die."
The Wallabies will put faith in squad depth to see them through if either fails fitness tests later in the week.
Inside centre Matt Giteau also appeared to aggravate his rib injury, but is expected to be ready to play. Winger Rob Horne is also still with the squad after injuring his shoulder against England and hopes to train this week to prove he can still be a part of the campaign.
Michael Hooper will be back after serving a one-match suspension, while Kurtley Beale has been in superb form and will capably fill Folau's shoes if needed.