X ray of Warfare's left hind leg (below, right) taken by Veterinarian William H. Wright shows bone chip which caused removal of 3-year-old from this year's classic races. "In race horses," says Dr. Wright, "85 to 90% of all fractures are to the front legs. In Warfare's case it is a back leg. The X-rays reveal the presence of a simple, complete, proximal, articular fracture of the dorsal aspect of the first phalanx, or large pastern bone. There is a little piece of bone which has chipped off. An operation is a thing to consider, yet if you remove the chip you might be removing only the effect and not the cause." Artist's rendering shows the lower structure of a horse's foot and the bone chip, which is about the size of a pea.