EE'S REMOVED THE CHAIN OPERATOR FROM Y4 DOV AND PLACED THE CHAIN OPERATOR ON THE WORK PLATFORM. AFTER COMPLETING THE JOB, EE WAS ATTEMPTING TO REMOVE THE CHAIN OPERATOR FROM WORK PLATFORM. CHAIN OPERATOR FELL TO THE GROUND AND BOUNCED UPAND FELL ON TOP OF HIS RIGHT FOOT. FOOT HAD A VISIBLE ABRASION ON TOP OF HIS RIGHT FOOT AND FOOT HAD BEGUN TO SWELL.