EE WAS TRYING TO OPEN A STIFF DOOR ON A CONTAINER & WHILE PUSHING IT OPEN HE APPARENTLY HURT A MUSCLE IN HIS SHOULDER. EE CLAIMED HE HURT HIS SHOULDER AT WORK ON 6-4-02 BUT DID NOT INFORM SUPE RVISOR OF THIS UNTIL 6-26-02. HE SAW A DOCTOR ON 6-14-02 & DID NOT REPORT IT AS A WORK INJURY THEN.