EMPLOYEE STATED THAT WHILE HELPING PUT A COVER BACK ON #85 MOTOR, FELT A PAIN IN HIS LEFT BICEP. CONTINUED TO WORK AND WORKED THE NEXT DAY. ON 21 MAY WENT TO THE HOSPITAL TO FIND THAT HE HAS A TORN BICEP MUSCLE. AT THIS TIME, IT WAS NOT KNOWN IF THIS INJURY WAS DUE TO A PREVIOUS SURGERY TO THIS SAME AREA. FINAL DIAGNOSIS DETERMINED THAT INJURY WAS NOT DUE TO A PREVIOUS SURGERY.