Order Of St George is the star attraction in an eight-strong field declared for the Vintage Crop Stakes at Navan on Sunday.
An impressive winner of last year's Gold Cup at Royal Ascot, the son of Galileo suffered a shock defeat when defending his crown in the Irish St Leger, but bounced back to finish a fantastic third in the Prix de l'Arc de Triomphe.
He rounded off his campaign on a disappointing note when beaten into fourth in Ascot's Long Distance Cup, but is still likely to be a warm order as he bids to add his name to a roll of honour that features Ballydoyle aces like Yeats and Fame And Glory.
Dermot Weld, trainer of the great Vintage Crop, relies upon Forgotten Rules.
The seven-year-old won this prize in 2015, but has been largely disappointing since finishing third in that year's Gold Cup and is fitted with blinkers for the first time.
Forgotten Rules and the Jim Bolger-trained Twilight Payment were both placed behind Jessica Harrington's Torcedor when he impressed in a conditions race at Leopardstown at the start of the month and the trio renew rivalries.
Red Stars, Lustrous Light, Morga and Dew Line complete the line-up.