EMPLOYEE WAS CHECKING A PLUGGED SAND PUMP AND STEPPED ON A HATCH COVER THAT WAS NOT SECURED, FALLING DOWN AND SCRAPED FOREARM, SHIN AND TWISTED LOWER BACK. EMPLOYEE CONTINUED TO WORK UNTIL 06/19/2019 WHEN STARTED HAVING PROBLEMS WITH LEFT SHOULDER AND HAD IT CHECKED AND WAS TOLD IT WAS A SPRAIN AND PUT ON RESTRICTIONS OF RIGHT HAND USE ONLY.