One more piece of the Prix de l’Arc de Triomphe jigsaw slotted into place on Wednesday when Frankie Dettori was confirmed as the rider of Ruler Of The World.

The David Wachman trained Aloof, whose two previous career successes were achieved on Dundalk’s polytrack surface, proved a shock 12/1 winner of the Denny Cordell-Lavarack & Lanwades Stud Fillies Stakes in Gowran Park yesterday.

The Aidan O’Brien-trained Mars is as low as 10/1 favourite (with Boylesports) for the 2013 Investec Derby in Epsom following his convincing debut success in Dundalk yesterday, second leg of a two-year-old double for Aidan and Joseph O’Brien.