What should a referee do if they notice a player is injured?

When a referee notices a player is injured, stopping the game to allow for medical assistance, if necessary, is the appropriate action. This decision prioritizes the health and safety of the players on the field. When an injury occurs, it's crucial to assess the severity of the situation and ensure that the affected player receives the necessary care without delay.

Continuing the game until half-time could risk worsening the player’s condition if they require immediate attention or if the injury is serious. Calling for a timeout is not a standard procedure in most soccer matches, as only the referee can stop the game for injuries. Asking a player to leave the field immediately may not be suitable without first ensuring that they are safe and determining whether they need medical evaluation or assistance. Thus, stopping the game for medical help ensures all players are protected and that any injuries are properly addressed.