Australia coach Robbie Deans has not ruled out the possibility of calling up Matt Giteau to his injury-hit World Cup squad.
The 28-year-old back, who was a surprise omission from the Australian World Cup party, may get a reprieve as Deans is facing a lengthy injury list following the bruising victory over the United States.
But by Saturday morning concerns over Anthony Fainga'a (concussion) had eased, while a decision on bringing in any replacements would be left until Rob Horne (fractured cheekbone), Pat McCabe (dislocated shoulder) and Wycliff Palu (hamstring) had been further assessed in Christchurch.
"We won't be making any decisions [on replacements] in the next probably 48 hours," said Deans.
"We'll make sure we are fully aware and fully informed before we move. We trained with 40 earlier in the year so it's pretty evident where we will be looking to.
"[Giteau] is obviously in the frame for a potential call-up. He was in the 40."
Fainga'a, scorer of two tries in the 67-5 thrashing, was knocked unconscious after taking a knee to the head in the last minute of the match.
The 24-year-old was taken off on a stretcher in a neck brace and Deans added: "He can recall everything, including the moments leading up to the tackle, so that's a great sign.
"But it's not something that we mess around with so we'll monitor him and just make sure he's fully recovered before he re-enters the fray."
Deans revealed Horne had a minor displacement of his cheekbone, while McCabe's dislocated shoulder did not appear to be "as grave as it potentially could have been".
Palu will have an MRI scan on his hamstring in Christchurch.
Hat-trick hero Adam Ashley-Cooper was part of the walking wounded, which included full-back Kurtley Beale (tight hamstring), after hurting his ankle but he was confident he would be fit for the game with Russia next Saturday.
The Wallabies can at least be pleased with the performance of Berrick Barnes, who started at fly-half in a reshuffled line-up.
"Berrick played well, it was good to see him back out there," said Deans.
"He kicked well so that was one positive. Some other players also got some rugby who haven't of late."
"We were pleased (with the result). It wasn't perfect, but there are elements in that game which we made good progress on."
Deans could see the improvement in his forward line after they were beaten in the contest by Ireland last Saturday.
"They [the forwards] maintained their momentum and approached the game with a slightly better mentality, with a bit more discipline in their decisions," he said.
"They didn't chase the rainbow, they adjusted their approach and as a result put the pressure on. We got the ball in and applied the pressure."
United States captain Tim Usasz said his team were taught a rugby lesson by one of the sport's heavyweights.
"When you play the best sides in the world they really punish you for your mistakes, but that's we learned tonight," he said.
"We came out here to be measured against the best and we'll learn from it."