IN PREPARING TO END DRAG ROPES, EE WALKED FROM IN FRONT OF THE DRAGLINE BUCKET DOWN THE RIGHT SIDE OF IT TOWARDS THE HOIST RIGGING, WALKING BETWEEN DRAG CHAINS THAT WERE STRETCHED OUT BESIDE THE BUCKET & THE RT. HAND DRAG ROPE. A LOOP IN THE ROPE UNTWISTED & HIT EE IN THE ANKLE AREA, KNOCKING HIM TO THE GROUND & PINNING HIS LEG AGAINST THE DRAG CHAIN. HE WAS TAKEN TO LOCAL E.R.