Can you see her still, in your mind's eye, that dark bay filly with a gait so ungainly as to almost belie her brilliance? Almost. But make no mistake, Attraction was brilliant, with a steeliness to match. The Irn Bru of racehorses: made in Scotland from girders. "People label horses as tough and talk about horses like Double Trigger being tough. Well, he wasn't particularly tough. I've encountered three horses in my career, I would say, that were exceptionally tough and they were all mares." So says Mark Johnston, the...