Demi O'Byrne, for so long an integral part of the Coolmore/Ballydoyle purchasing axis at yearling sales, has formed a new partnership with bloodstock agent Sean Grassick. The pair, who have been working together informally for the past four years have recently launched O'Byrne & Grassick International Bloodstock Agency and will be in attendance at all the major sales in Europe, USA and Australia. O'Byrne has purchased a long list of champions in his illustrious career to date and over 70 individual Group 1 winners worldwide. These include the likes of...