THE EMPLOYEE WAS INVOLVED IN RECOVERING OLD BEARINGS IN THE 2 WEST AREA AT 25XC. HE SQUATTED DOWN TO PICK UP THE BEARINGS, FELT A PAIN IN HIS LEFT KNEE.HE STOOD UP AND CLEANED THE AREA UNDER H IS KNEE, SQUATTED DOWN AGAIN, THIS TIME FEELING A SHARPER PAIN IN HIS KNEE.