Field of 17 for Derby A field of 17 is set to contest the Vodafone Derby at Epsom on Saturday after Bronze Cannon was the only withdrawal at the 48-hour final declaration stage. Aidan O´Brien is responsible for five of the runners - Frozen Fire, King Of Rome, Alessandro Volta, Bashkirov and Washington Irving - as he seeks to win the Epsom Classic for a third time. Tartan Bearer, Tajaaweed and supplementary entry Doctor Fremantle give Sir Michael Stoute three solid chances. The two other horses added to the field at a cost of #75,000 at Monday´s confirmation stage - Dermot Weld´s ante-post favourite Casual Conquest and the Paul Cole-trained River Proud - also stand their ground. A seven-strong Irish party is completed by Jim Bolger´s dual 2000 Guineas runner-up New Approach. Curtain Call, formerly with Jessica Harrington, bids to give Luca Cumani a third win in the race after Kahyasi (1988) and High-Rise (1998). Other horses going for Derby glory are Henry Cecil´s Kandahar Run, Godolphin´s Rio De La Plata, Alan Devonshire, Bouguereau and Maidstone Mixture.