Australia is one of seven declared runners as he bids for a Classic double in Saturday's Dubai Duty Free Irish Derby at the Curragh.
Aidan O'Brien's charge fell short when only third in the 2000 Guineas but put the record straight as held off Kingston Hill by a length and a quarter in the Investec Derby at Epsom.
Kingston Hill has been declared by Roger Varian, although connections have stated they would like to see some rain ahead of the planned rematch.
Australia is one of four runners for O'Brien with Geoffrey Chaucer, Kingfisher and Orchestra all taking their chances in a race the Ballydoyle handler has dominated in recent years.
O'Brien won seven successive renewals before Jim Bolger's Trading Leather snapped his sequence last year.
Dermot Weld has declared Derrinstown Derby Trial winner Fascinating Rock, who finished eighth at Epsom, but he would like to see a little more ease in the ground.
Speaking at Naas on Wednesday evening, Weld said: "It's pretty ground dependent. Hopefully they get plenty of rain - it's pretty firm at the moment so they'll have to get the rain or water it sufficiently.
"I understand they have a difficult decision as rain is forecast so they might not want to water but I'm sure they'll get it right.
"He's in great form. He hasn't been burning up the gallops or anything since Epsom because I haven't asked him to, he's just had an easy time.
"If he runs, I'm convinced we'll see the horse who won his Group races in Ireland rather than the one that ran at Epsom."
The only other runner is John Oxx's Ponfeigh.