I see her point about breeding great individuals, but excluding a mare due to an injury? To me that doesn't make sense. We have a mare from very desireable blood lines who did very well as a show horse, but was prematurely retired when after getting cast in her stall she badly injured her shoulder. It was not due to genetics, just an unfortunate accident from getting cast in the middle of the night. I don't think that is a valid enough reason to exclude a mare from breeding.