Aidan O'Brien said it is "more likely" Order Of St George will run in the Prix de l'Arc de Triomphe rather than the Emirates Melbourne Cup.

The grand five-year-old stayer won the Irish St Leger for a second time at the Curragh on Sunday and is now in the frame to contest the big race at Chantilly, in which he finished third last year, on October 1st.

Sunday's impressive Irish St Leger winner will have to shoulder 58kg (9st 2lb) on in the Melbourne Cup on November 7th, with the legendary Makybe Diva the only horse able to defy such a weight in the last 40 years.

O'Brien told the Herald Sun: "We haven't decided yet between the Arc and the Melbourne Cup for Order Of St George but it's probably more likely that he will go for the Arc."