WHILE DIGGING A HOLE, EMPLOYEE SLIPPED INTO HOLE, APPROX 2 FT WIDE AND 2 FT DEEP. EMPLOYEE'S FEET LANDED IN THE HOLE AND WITH A LOSS OF BALANCE HE FELL FORWARD. AS HE FELL A WRENCH LANDED WITH SOME FORCE ON HIS RIGHT MIDDLE FINGER. EMPLOYEERECEIVED TREATMENT FOR BILATERAL KNEE SPRAIN AND PAIN IN RIGHT MIDDLE FINGER.