Australia heads O'Brien Derby team Australia could be joined by three other Ballydoyle residents in the Investec Derby at Epsom on Saturday week. Aidan O'Brien confirmed at the 'Breakfast with the Stars' morning at the Surrey venue that the red-hot ante-post favourite may be accompanied by Geoffrey Chaucer, Kingfisher and Orchestra. Joseph O'Brien, the trainer's son, is set to partner Australia, a most encouraging third in the 2000 Guineas at Newmarket on May 3. Ryan Moore won the Irish 1,000 Guineas last weekend aboard the O'Brien-trained Marvellous and is poised to get the leg-up aboard Geoffrey Chaucer. O'Brien said: "At the moment, it's looking possible we'll run four - Australia, Geoffrey Chaucer, Kingfisher and Orchestra." Jamie Spencer is relishing the prospect of riding Arod in the premier Classic. The Peter Chapple-Hyam-trained colt made up lots of late ground at York on just his third career start to finish second in the Dante. Spencer issued a slight advisory, however, in that Arod needs a sound surface to be fully effective. He said: "It looks like Arod is going to run in the Derby. He's a high-class horse and is lightly raced. He needs fast ground, so watch this space." Those thoughts were echoed by Arod's owner Sheikh Fahad, who said: "He needs good ground. Good to soft maybe, but not worse." Sir Michael Stoute, by contrast, would be unfazed if the ground was testing for Snow Sky. The Khalid Abdullah-owned colt excelled in the Lingfield Derby Trial on May 10 and is already proven in demanding conditions. The Freemason Lodge handler said: "He's entitled to go (for the Derby) after his Lingfield performance, we're hopeful. Its still a long time away and Epsom drains very well. He won on soft ground at Salisbury and I'm not concerned about ground conditions." Romsdal will work at Newmarket on Friday to determine whether or not he will be supplemented for the Derby. Beaten just a nose by Orchestra in the Chester Vase, the Princess Haya-owned colt could instead run at Royal Ascot. Trainer John Gosden said: "He'll work in Newmarket and see what the owners want to do. He's in the King Edward at Royal Ascot, so it's up to them." Stablemate Western Hymn, who defeated Snow Sky in April and subsequently won Sandown's Classic Trial, is very much on course for Epsom after he enjoyed a nice workout under William Buick. The jockey said: "Western Hymn enjoyed coming here today. He handled the hill, switched his legs very well and his head carriage is better."
