Over-exertion (Not Elsewhere Classified)
WHILE CLIMBING UP THE 2 STEPS TO ENTER HIS TRACTOR TRAILER HE SLIPPED ON THE TOP STEP AND STARTED TO FALL OFF. HE GRABBED THE HANDRAIL ON THE OUTSIDE OF THE TRUCK AND HELD ON WHILE HIS LEGS KICKED OUT FROM UNDER HIM THIS CAUSED A MUSCLE IN HIS LOWER BACK TO TEAR.