Australia's fears over the fitness of Rob Horne have been allayed as the wing's shoulder injury is not as bad as was initially suspected.
Horne lasted just 11 minutes of the Wallabies' 33-13 thumping of England on Saturday before coming off at Twickenham in considerable discomfort.
It was feared that the Waratahs back may not feature again in the tournament, but Australia defence coach Nathan Grey was able to offer a positive update on his fitness on Monday.
"We've had the reports back on Rob Horne and they were better than expected, so we're going to just sit on that and wait and see how it unfolds," said Horne.
"The medical staff will be doing all they can. Results were better than they thought, so they will assess day by day. Other than that, everyone is pretty good."
Australia face Wales in a Pool A decider back at Twickenham on Saturday and the Wallabies have a clear plan as to how to approach the game.
"We've looked at their set-piece. Obviously we can't give away penalties, as Dan [Biggar] is such a successful goal kicker," Horne added.
"So the key is to put them under pressure and then back away in the style that you want to play the game, and that's how our preparation will be.
"Their scrum has been pretty solid. They've had a lot of injuries yet their performances have been consistent in the competition. They've had a break, so will be fresh."
Australia will discover on Tuesday whether influential flanker Michael Hooper will be available after he was cited for taking out England's Mike Brown at a ruck.