What is the primary role of the assistant referees?

The primary role of assistant referees is to support the main referee by calling offside violations and providing assistance on various in-game decisions. This includes monitoring the position of players in relation to each other and to the ball to ensure that the rules regarding offside are enforced correctly. In addition, assistant referees may help the main referee by indicating fouls, ball out of play, and other situations that require their attention, particularly those that are difficult for the referee to see from their central position on the field. Their perspective and additional eyes on the game help maintain the flow of play and uphold the integrity of the game.