Unless written approval is obtained from the commission, a fighter who has competed in a bout or tournament format event anywhere in the world shall not be allowed to compete in this state until seven days have elapsed from the date of that bout or event. This limitation shall not be construed to prohibit a fighter from competing in a tournament format event that requires the fighter to rest a minimum of 30 minutes between bouts. In a tournament format event, a fighter shall be examined by a physician before each bout.