EE & CO-WORKER WERE CARRYING 48""TOP ROLLERS & PLACING THEM ON BELT RAILS. THE CO-WORKER WAS PUSHING THE TOP ROLLER ACROSS THE BELT RAIL AS EE WAS STEPPING OVER. EE STATES HE TWISTED HIS LEFT K NEE WHEN STEPPING OVER THE BELT. NOTE: EE BEGAN MISSING WORK FRIDAY AUGUST 30, 2002.