Richard Hibbard expects a backlash from Australia's wounded players if they return from suspension against Wales on Saturday.
Adam Ashley-Cooper, Nick Cummins, Liam Gill, Tatafu Polota-Nau and Benn Robinson all missed the the win over Scotland last weekend after being involved in a midweek drinking session in Dublin.
They could now all face the Welsh at the Millennium Stadium as Wales look to finish their autumn campaign on a high - they have won two of their three matches and lost narrowly to South Africa.
"We should sort out a free bar in Cardiff!" joked hooker Hibbard. "They will have a lot of critics to answer after being dropped.
"They will be disappointed and will want to finish the tour and their season on a high. They will have a point to prove.
"We've been so close over so many games, but now is the time to do it.
"We have been saying it so long, and now we have to deliver. We targeted four from four victories so three isn't too bad and is something we can achieve."
Hibbard hopes the Wales players who experienced victory over the Wallabies during the Lions tour will be able to repeat the intensity of those Tests.
He added: "Any person who beats the Wallabies, with no matter what side, is going to bring that experience to the party.
"We were physical (in Sydney). We battered them for 60 minutes and that was the end of it. They couldn't survive after that, and we have to bring that ferocity again.
"It was intense, but one of those situations where you don't want to walk off the pitch, you are willing to crawl off. You would do anything for the win because it's that important.
"It was the same against England (in last season's Six Nations) and the ferocity was just as high. We definitely want to win this, we are going to win this, and we have to bring the intensity from the off and the physicality right across the park."