EMPLOYEE STATES HE STEPPED INTO WEEDS IN MINE AREA. AREA WAS WET AND UNEVEN. HE SLIPPED AND TWISTED ANKLE. MAN WAS TREATED CONSERVATIVELY UNTIL 9-9-03 AT WHICH TIME HE WAS STILL HAVING PAIN & WAS SENT FOR X-RAY (WHICH WAS NEGATIVE). HE WAS THEN PLACED ON MODIFIED DUTY.