Steve Haskin's blog at Bloodhorse.com detailed the struggles of St. Nicholas Abbey. As I'd suspected, the horse was utterly kind and possessed of a high pain tolerance, among a species known for high pain tolerances. I'm not a huge racing fan, but this horse's expression in a couple of still photos captured my attention so I've followed the story, hoping for a miracle. Alas, from Haskin's article, the horse's stoicism--we'd say valor--apparently contributed to his ultimate demise.
St Nicholas Abbey's Brave Battle