INJURED WAS WALKING THE RAIL WHEN HE SLIPPED OFF AND STRUCK HIS RT. SHIN AND PULLED RT. GROIN MUSCLE. HE DID NOT MISS ANY WORK UNTIL 3-11-02, WHEN HE WENT TO THE DR.. DR. REFERRED HIM TO A SPECIALIST. HE SAW THE SPECIALIST ON 3-19-02 & WAS TOLD TO REMAIN AWAY FROM WORK.