EE ALLEGES AS HE WAS GETTING OFF THE MACHINE HE STEPPED ON A SHARP ROCK & SPRAINED HIS LEFT FOOT. HE FELT PAIN AND THAT SOMETHING HAD BROKEN IN HIS LEFT KNEE. EE HAD SURGERY ON THAT KNEE & HAS NOT RETURNED TO WORK. NOT EXPECTED TO RTW FOR AT LEAST 3 TO 4 MONTHS.