If a video review is available, what must the referee do?

When a video review is available, the correct course of action for the referee is to use it at their discretion. This means that the referee has the authority to determine when to initiate a video review based on their judgment of the situation during the match. The role of video review is to assist the referee in making more accurate decisions regarding key game situations, such as goals, penalty decisions, mistaken identity in cautions or expulsions, and whether the ball was in or out of play leading up to a goal.

Video review is not something that can be ignored, as it is a tool designed to enhance the accuracy of officiating in the game. The decision to utilize video review is not solely dependent on input from assistant referees, nor is it necessary to announce its potential use to the players. Instead, the emphasis is on the referee's discretion to maintain control and ensure that the competition's integrity is upheld.