Tom O'Brien, the five-time Grade One-winning jump jockey who rode more than 1,000 winners in Britain and Ireland, has died at the age of 39 after a long illness with cancer. News of his death was confirmed on Wednesday, prompting tributes from across the sport. A nephew of champion trainer Aidan O'Brien, he left Ireland as a teenager without a single race ride to his name and joined Philip Hobbs at Minehead, the yard that would remain his base until he stepped away from the