A spectacular weekend of racing continues at the Curragh on Sunday where Group One honours are up for grabs on no less than three occasions.

The headline race is the Palmerstown House Estate Irish St. Leger for which Ascot Gold Cup hero Order Of St George is likely to be a short-priced favourite.

Aidan O'Brien's son of Galileo has already established himself as the leading stayer in Europe and warmed up for today's task with a comfortable C & D success last month.

He should prove very hard to beat with his only viable danger, Trip To Paris, still working his way back to top form following injury.

Leading 2000 Guineas fancy Churchill bids to take another step up the ladder when he lining up in the Goffs Vincent O'Brien National Stakes and he was particularly impressive when pulling nicely clear of Radio Silence here last time.

He takes on a strong British challenge with the high-class Mehmas stepping up to 7f for the first time and Lockheed expected to prove more streetwise than when third at York recently.

The Moyglare Stud Stakes looks set to be dominated by Ballydoyle with four of the seven runners hailing from the powerhouse stable.

Ryan Moore has seemingly opted to ride Promise To Be True, a sister to Maybe, who was herself a former winner of this race, but stablemate Rhododendron looks a fine prospect in her own right and was always doing enough when claiming a Group Two success here three weeks ago.

Racing gets underway at 2.00 with the Irish Stallion Farms EBF "Bold Lad" Sprint Handicap and British raider Intisaab might be the one to claim the bumper prize on offer.

There are more speedsters on show in the Derrinstown Stud Flying Five Stakes and a high draw should ensure reformed character Toscanini grabs a good early pitch, while Best In World is another who looks to have turned a corner now and she holds strong claims in the Moyglare "Jewels" Blandford Stakes.