When can players re-enter the game after being substituted?

Players can re-enter the game after being substituted only after the next opportunity for substitution arises. This rule is in place to maintain the flow of the game and ensure that substitutions are managed properly. The opportunity for substitution typically occurs when play is stopped for a variety of reasons, such as fouls, injuries, or when the ball goes out of play.

This structure helps maintain fairness and organization during the match, allowing teams to plan their substitutions strategically. In contrast, allowing players to re-enter immediately, during halftime, or whenever a coach calls them back could lead to disorganization, potential unfair advantages, and confusion on the field. The requirement that players wait for the next substitution opportunity ensures that the game proceeds in a structured manner, preserving both the competitive balance and the integrity of the match.