Aidan O’Brien’s Dual Derby hero Australia is one of 11 remaining possibles in the Juddmonte International Stakes at York on Wednesday.
The three-year-old has not been seen since comfortably accounting for a small field in the Dubai Duty Free Irish Derby at the Curragh.
O'Brien has repeatedly stressed his participation in the Knavesmire is not completely guaranteed and the Ballydoyle handler has left in stable companions Kingsbarns, Kingfisher and Hall Of Mirrors.
Chief threat to Australia could come from Michael Stoute's Telescope.
The four-year-old was no match for Taghrooda in the King George at Ascot but lost little in defeat and was earlier an easy winner of the Hardwicke Stakes.
He landed the Great Voltigeur on this card 12 months ago.
Just behind Telescope in the King George was John Gosden's Eagle Top and he is another possible, although he also holds an entry in the Great Voltigeur.
The same comments apply to Roger Varian's Kingston Hill, runner-up to Australia in the Investec Derby.
Coral-Eclipse winner Mukhadram is on course for William Haggas, while Derby fourth Arod, a facile winner of a three-horse conditions race last time out, is also likely to run.
Jim Bolger's Trading Leather and Kevin Ryan's Dante and French Derby winner The Grey Gatsby offer further strength in depth.