THE EMPLOYEE WAS DOING A WALK AROUND PRIOR TO STARTING A HAUL TRUCK. HE STEPPED ON SOME FROZEN MUD, TWISTING HIS ANKLE. HE DIDN'T SEEK MEDICAL ATTENTION UNTIL FEB 4, 2002 WHEN HE REQUESTED TO SEE A DOCTOR. HE WAS TAKEN TO THE E.R. FOR EVALUATION AND TREATMENT.