Donnacha O’Brien has confirmed his Cheveley Park Stakes heroine Porta Fortuna to be firmly on course for a trip to the Breeders’ Cup next month.

Winner of the Albany Stakes at Royal Ascot earlier in the year, the daughter of Caravaggio was subsequently placed in the Phoenix Stakes and the Moyglare Stud Stakes before making it third time lucky at Group One level at Newmarket late last month.