Aidan O'Brien has nine horses in first seven of ante-post betting for Derby . Jockeys William Buick and James Doyle have been recruited by Godolphin . Ryan Moore and Richard Hughes set for Jockeys Championship battle .
Aidan O'Brien has seven horses in first nine of ante-post betting for Derby . Jockeys William Buick and James Doyle have been recruited by Godolphin . Ryan Moore and Richard Hughes set for Jockeys Championship battle .