Petrushka will bid to overturn Epsom form with Love Divine when the pair clash in next week`s Aston Upthorpe Yorkshire Oaks.
The Sir Michael Stoute-trained filly, third to Love Divine in the Vodafone Oaks in June, has been confirmed on course to take her place in what is shaping up to be one of the races of the season.
Last year`s winner Ramruma, herself the winner of last year`s Epsom fillies` Classic is also an intended runner.
Petrushka`s last outing saw her land the Kildangan Stud Irish Oaks at the Curragh and she will be bidding for a second Group One success for owners Highclere Throughbred Racing.
Manager Harry Herbert confirmed: 'We are all set and ready to run.
'She worked very well this morning and has strengthened well since the Irish Oaks, her work has been very exciting.
'The plan is to get Johnny Murtagh, who rode her in Ireland, to take the ride again providing his other commitments don`t prevent him from being at York.'
Commenting on the strength of the field, Herbert added: 'It is going to be a really good race, a smallish but very high-class field.
'On paper we do have something to find with Love Divine but I am sure that we saw the real Petrushka in Ireland and we`re really hopeful.'
A spokeswoman for Henry Cecil`s stable confirmed that both Love Divine and Ramruma are on course for the race, providing a memorable clash of the generations.
The last time it occurred was when Time Charter, the winner of the Oaks in 1982 and Sun Princess, the victor a year later, met in the 1983 King George VI and Queen Elizabeth Diamond Stakes with Time Charter winning and Sun Princess finishing third.
'Provided that the going is good, they are both intended runners at this stage,' she said.
Ela Athena, who chased Ramruma home in the race last year, is also an intended runner after finishing second to Crimplene in the Nassau Stakes at Goodwood earlier this month.
