Aidan O'Brien's dual Derby hero Australia will face five rivals in the Juddmonte International at York on Wednesday.

Since being narrowly beaten into third by Night Of Thunder and Kingman in the 2000 Guineas, the son of Galileo and Ouija Board has blown away his opponents at Epsom and the Curragh to confirm himself the leading three-year-old colt over middle distances.

The trainer's son, Joseph, has been ever-present in the saddle during Australia's six-race career and is set to slim down to 8st 12lb to keep the partnership intact as the three-year-old is pitched into all-aged company for the first time.

However, just two older horses have turned up, with the Michael Stoute-trained Telescope and William Haggas' stable star Mukhadram both proven top-notchers, having finished second and third respectively in the King George at Ascot last month.

Mukhadram had previously claimed a first Group One in Sandown's Coral-Eclipse, while Telescope impressed in the Group Two Hardwicke Stakes at the Royal meeting.

Kevin Ryan's French Derby winner The Grey Gatsby is an interesting contender, returning to the scene of his victory in the Dante Stakes earlier in the year.

Peter Chapple-Hyam's Arod has ground to make up on Australia on Epsom form, but is expected to be more effective over a mile and a quarter.

Australia's stable companion Kingfisher completes the field.