The weather is going to have a major bearing on the Red Mills Irish Champion Stakes, the feature of a brilliant eight-race card at Leopardstown.
Declaration Of War and The Fugue headed the betting when bookmakers opened up at the start of the week, with the ground riding on the quick side.
But a bit of rain has fallen at the venue, with considerably more possible, and that would bring Al Kazeem and even the returning Kingsbarns into the equation.
Add Jim Bolger's Group One winners Trading Leather and Parish Hall into the mix and the stage is set for a top-class renewal.
The Coolmore Fusaichi Pegasus Matron Stakes also carries Group One status and Kenhope tops a somewhat uncertain market in the absence of Elusive Kate.
British hopes now rest on the Lady Cecil-trained Chigun, with the home team led by last week's Curragh scorer Say.
Free Eagle puts his massive reputation on the line in the ICON Breeders' Cup Juvenile Turf Trial Stakes.
Dermot Weld's Derby favourite beat the re-opposing Wexford Town and Kingfisher on his debut so has more to fear from Aidan O'Brien's beautifully-bred Curragh winner Australia and the Ger Lyons-trained Exogenesis, who was third in the Futurity last time.
The United States got his career back on track by defeating Manalaplan at Tipperary and they lock horns again in the Group Three KPMG Enterprise Stakes, in which Elleval, Belle De Crecy, Tandem and Zand also make the shortlist.
The action kicks off at 3.45pm with the Irish Stallion Farms EBF Fillies Maiden, in which Shell House makes a swift reappearance following Sunday's Curragh second, and her stablemates Agena and Masai are two of several interesting newcomers in the colts' version.
Majestic Jasmine seeks a four-timer in the Ladbrokes Handicap, while smart jumpers Call Me Bubbles, Pique Sous and Flaxen Flare catch the eye in the Irish Stallion Farms EBF "Petingo" Handicap.