THE INDIVIDUAL WAS FIXING TO OPEN A LARGE DOOR TO THE MOBILE EQUIPMENT SHOP AND NOTICED A HYDRAULIC JACK IN THE WAY. HE MOVED THE JACK AND TURNED TO OPEN THE DOOR AND FELT PAIN IN HIS ANKLE. H R THOUGHT HE HAD SPRAINED IT. HE WENT TO THE DOCTOR AND WAS TOLD AS A PRECAUTION HE SHOULD SEE AN ORTHOPEDIC DOCTOR. THERE WAS A SLIGHT FRACTURE.