Keyword: Yellowstone

  • Trainer Aidan O'Brien is looking for another of his 3-year-olds to step up after retirement of Holy Roman Emperor.

    O'Brien Focus on 3YOs Heading into Euro Season

    Following Holy Roman Emperor's shock retirement to stand as a stallion at Coolmore earlier this month, trainer Aidan O'Brien admitted on March 26 that he is looking for another of his 3-year-olds to step forward in order to fill the void left by that horse's departure.