Macarthur Heads O'Brien Derby Hopes Aidan O'Brien has nominated Macarthur ? a full-brother to 2005 winner Motivator - along with Anton Chekhov and Archipenko as possible Vodafone Derby candidates.The Ballydoyle maestro will be seeking his third win in the premier Classic in June following Galileo in 2001 and High Chaparral the following year.He said: 'Macarthur won't go the Guineas route and he is more likely to go to the Ballysax and Derrinstown and I think he would like to go a mile and a quarter.'He, along with Anton Chekhov, would not really be considered for the Guineas and are more likely to get a trip.'(C) PA Sport
