Wallabies lock Adam Coleman will be on the plane to Sydney on Sunday, after scans cleared him of a facial fracture.
Coleman came off in the 43rd minute of Australia's 26-21 loss to Ireland in Melbourne, and sported a swollen cheek post-match.
The 26-year-old was sent for scans on the injury, but was deemed fit to travel, in good news for the Wallabies.
Coleman is a major physical presence for Australia and it was an area where they were outdone by Ireland on Saturday, prop Scott Sio said.
"I think they prepared accordingly to how we defended in Brisbane and we got caught on the hop in the first 20 minutes or so, so we've just got to go back, review that, see where they targeted us in our defence and I think there's a lot of other aspects of our game where we need to improve to help that," he said.
"We can't be playing with 35 per cent possession.
"The territory and possession game is pretty key at Test level, so I think we just need to treasure the ball a bit more, be a lot better with our kicking and just be a lot more clinical around the park with everything we do."
The news is not so good for halfback Will Genia, with the 30-year-old going under the knife after breaking his arm.
The incident where he was injured, by a hit from prop Cian Healy, has not been cited as yet.
Sio said Genia's absence would be a blow for the team, but chose to look on the bright side of the situation.
"Very disappointing to have Willy G out - thoughts and prayers with him as he goes through surgery today," he said.
"His influence will definitely be missed and I guess on the flipside it gives an opportunity for guys like Nick Phipps and Joe Powell to put their hand up and put their best foot forward and represent their country.
"I'm sure Willy will be sending them a few messages of advice and well wishes this weekend as well but I hope the surgery goes well for Willy and he comes back healthy and ready to go."
Wallabies flyhalf Bernard Foley will likely partner up with Waratahs teammate Nick Phipps in Sydney and said he had complete confidence in Genia's replacement.
"I have a lot of faith in Nick and what he's bringing," he said.
"I've played with him for many years now and it's going to be a shame that Will's out and for how long I'm not sure but it gives Nick an opportunity, it gives guys like Joe Powell an opportunity, who's been in and around the squad.
"The big thing about this team is when guys get the opportunity they take that."
Genia and Phipps are contrasting players and Foley said the team would adapt to that in the series-deciding third Test.
:I suppose Will has got a great understanding of the game and can control the game exceptionally well through his running, his kicking and his passing," he said.
"Nick's just a hard worker, he's someone who's worked tirelessly through the 80 minutes, makes sure he speed of ball is phenomenally quick and just keeps barking, keeps the forwards in line.
"There will be small adjustments but nothing too significant that's going to change the way we're going to play. We still back these guys as quality players to come in and fill that role."
The Wallabies take on Ireland in the third June Test on Saturday June 23 at Allianz Stadium, kicking off at 8:05pm AEST, LIVE on FOX SPORTS, Channel Ten and via RUGBY.com.au RADIO.