IRISH OAKS heroine Moonstone will miss next Thursday's Darley Yorkshire Oaks after meeting with a slight setback.

The filly's trainer Aidan O'Brien said on Tuesday: “Moonstone has had a little hold-up andwill be confined to walking for seven days, so she won't be going to York. The plan is to run Ice Queen and Adored in the Yorkshire Oaks.”

Moonstone was 7-2 second favourite with Blue Square for the York Group 1, behind 3-1 market leader Look Here.

Ice Queen was a 66-1 shot when she was beaten a head by Moonstone in the Curragh Classic.               
O'Brien confirmed that Red Rock Canyon would join Duke Of Marmalade in the Juddmonte International Stakes, while he expects to run four in the Ladbrokes Great Voltigeur Stakes.

“We are looking at running Alessandro Volta, Washington Irving, Hebridean and Bashkirov,” said O'Brien.

Septimus, winner of the Group 3 Curragh Cup on his only start this season, will attempt to win the Weatherbys Insurance Lonsdale Cup for the second consecutive year.

The going at York last night was described as soft, with a forecast of mixed weather ahead