WAS WORKING WITH SUPERSACKS AND FORKLIFT. TRIED TO STRAIGHTEN OUT THE SUPERSACK WHILE IT WAS ON THE FORKLIFT ARMS. SAID THAT HE WAS PUSHING AND FELT A SHARP PAIN. WORKED THE REST OF THE DAY. SAID THAT HE WAS A LITTLE SORE. ASKED HIM IF HE WANTED TO GO TO THE DR, HE SAID NO, HE WOULD BE OK. HE WENT TO DR ON 9-27. HE PULLED A MUSCLE IN THE GROIN AREA.