O'Brien declares trio for Derby Despite the absence of Zawraq, Ireland has a strong hand in Saturday's Investec Derby after Aidan O'Brien declared Giovanni Canaletto (Ryan Moore), Hans Holbein (Seamie Heffernan) and Kilimanjaro (Joseph O'Brien). Success Days and rank outsider Carbon Dating also make the journey for the Epsom Classic. John Gosden is responsible for two of the final Derby acceptors but there is a slight question mark over the suitability of the ground for Jack Hobbs. The son of Halling had to play second fiddle to stablemate and ante-post Derby favourite Golden Horn in the Dante. Gosden said: "I'll walk the track on Saturday morning. The ground is perfect right now, but we'll see what the weather does and whether they get a thunderstorm. I'm happy with all the horses." Elm Park is given the chance to shine by Andrew Balding and owners Qatar Racing. The Group One-winning colt, third behind Golden Horn and Jack Hobbs at York, is joined in the line-up by German challenger Rogue Runner, who is also owned by Qatar Racing. Epicuris, Moheet and Storm The Stars complete the final field.