EE WAS WALKING INTO HIGH VELOCITY AIRFLOW TOWARD THE LINK CANYON PORTAL. HE STUMBLED OVER AN IRREGULARITY ON THE FLOOR AND FELL FORWARD. AS HE FELL FORWARD HE PUT HIS RIGHT FOOT FORWARD TO CAT CH HIMSELF AND FELT A SHARP PAIN IN HIS LEFT ANKLE. PAIN RADIATED FROM HIS ANKLE TO HIS KNEE.