Idaho bids to bolster Derby claims

Aidan O’Brien is likely to develop a clearer understanding of his Investec Derby pecking order at Leopardstown tomorrow.

The Ballydoyle handler saddles four runners in the Group Three Derrinstown Stud Derby Trial, with Idaho the most prominent in the betting for the Classic at Epsom on June 4.

O’Brien said: “Idaho was second in the Ballysax Stakes at Leopardstown last month.