Under such rules as the Boxing and Wrestling Commission may prescribe, no boxer or wrestler may participate in an exhibition without having first filed with the Commission a certificate of physical fitness and exact weight from a practicing physician. Such certificate shall be in the form prescribed by the Commission and shall be from a physician approved by the Commission. A certificate:of training from the manager or trainer of every boxer or wrestler or from the officer of the gymnasium or club at which such boxer or wrestler has trained shall also be filed with the Commission, in such form as it may prescribe, before each and every exhibition (1969 Code Sec. 113.13)