O'Brien's Go Head-To-Head At Breeders Cup Joseph O'Brien will become the youngest winning trainer in Breeders' Cup history - and his brother Donnacha the youngest jockey - if Intricately prevails in the Juvenile Fillies Turf on Friday. The daughter of Fastnet Rock provided the fledgling handler with his first Group One success since taking out a licence when she sprang a surprise in the Moyglare Stud Stakes at the Curragh in September. It was also a first top-level success for 18-year-old Donnacha and the brothers will team up once more in California. Joseph O'Brien currently holds the record for being the youngest jockey to ride a winner at the showpiece fixture after steering his father Aidan's St Nicholas Abbey to victory in the Breeders' Cup Turf five years ago. Asked about the tantalising prospect of making history once more, O'Brien said: "That would be seriously frightening, but we can dream it will happen. "My first Group One with this filly in the Moyglare was very special and I wasn't totally surprised, because she had finished very close behind her rivals in her prep. "I'm delighted by the way she has travelled over here and her work on the track has been good. "It's a completely different task and, until the day, I'm not sure how much it will play to her strengths. "I'm not worried about the ground, that will be fine, but I am concerned about the tightness of the track. It could be a problem, but let's hope not." Aidan O'Brien is double-handed in the mile contest, with Hydrangea and Roly Poly both leading contenders. Hydrangea was runner-up to Intricately in the Moyglare before chasing home stable companion Rhododendron in the Fillies' Mile at Newmarket. Roly Poly was last seen finishing a close second in the Cheveley Park Stakes and will be ridden by Ryan Moore. "I'm in opposition to Joseph, but we are looking forward to it, the both of us," said the Ballydoyle maestro. "I think it's a big call for Joseph's filly, who probably hasn't done the racing our fillies have and I would certainly rather meet her here than at the Curragh. "Joseph and Donnacha have always got on really well and have known nothing except horses since they were very small. "Joseph will have thought everything through very carefully and we are not taking anything for granted."
