The X-Ray Files series, now in its second year and presented in cooperation with the Consignors and Breeders' Association, uses conversations with buyers and sellers to contribute to the discussion on the sales and training process. Joseph O'Brien, the son of legendary trainer Aidan O'Brien, has steadily built up an impressive reputation of his own, first as a jockey with 31 top-level wins worldwide and now as a trainer with Group 1 wins from Ireland to Australia, France, England and the U.S. O'Brien became the youngest jockey to win...