O'Brien hoping rain stays away at Longchamp Aidan O'Brien is hoping the rain stays away as he prepares to send Camelot for the Prix de l'Arc de Triomphe at Longchamp on Sunday. The 2,000 Guineas, Epsom and Irish Derby winner will bid to redeem his reputation after losing his unbeaten record in the St Leger at Doncaster last time. Frankie Dettori will take over on the colt, with stable jockey Joseph O'Brien unable to do the weight on the three-year-old. “We're hoping for not too much rain – we're hoping for English good to soft,” said O'Brien at Dundalk this evening. “He's in good form since Doncaster and the 1m6f might have extended him too far there. We've always thought he was very special.” O'Brien also revealed that he is very happy with the booking of Dettori for Camelot:- “Frankie is a great rider, he has all the experience in the world, and we're delighted to have him.” Joseph will now get the leg up on St Nicholas Abbey and O'Brien senior said of his other charge:- “I'm very happy with him. His preparation has gone brilliantly and he loves a mile-and-a-half.” (Michael Graham and Gary Carson)