AIDAN O’BRIEN’S So You Think cannot be opposed in the Group 1 Red Mills Irish Champion Stakes at Leopardstown this evening, where one of the main questions to be answered is just how many winners will the Ballydoyle maestro manage?

AIDAN O’BRIEN’S Why gets the nap in the caulfieldindustial.com EBF Fillies Maiden at Galway tonight.

AIDAN O’BRIEN’S Mastercraftsman was rated last year’s top two-year-old in Europe but his mark of 122 was considerably lower than the one achieved by 2007 champion New Approach in the European Thoroughbred Racehorse Rankings.

AIDAN O’BRIEN’S Nell Gwyn, a poor fifth of seven behind Four Sins at the Curragh on her debut Curragh, but a full-sister to Rock Of Gibraltar, was all the rage for the Irish Stallion Farms’ EBF Fillies Maiden at the first stage of the Tralee Festival last evening and duly obliged.

AIDAN O’BRIEN’S Hold That Tiger, short-priced favourite for the English 2,000 Guineas, will not make his seasonal reappearance in the Castlemartin and La Louviere Studs Gladness Stakes at the Curragh on Sunday.