Concussion is a serious and on occasion potentially life-threatening condition. It can be caused by a relatively innocuous blow to the head. Umpires are among those consistently present at matches who have a Duty of Care to the players. Umpires are (in general) not qualified to determine whether anyone is suffering from a concussion, but they do have an ongoing general duty of care to players during a match. The discharge of this duty will be different in every circumstance but generally, the umpire should be deemed to be acting reasonably if they follow the steps outlined below.
Please see the attached document below for further information.