What must be done if a Libero is designated but does not enter the match?

When a Libero is designated for a match but does not enter the game, it is important to note this on the control sheet for record-keeping purposes. This documentation serves to clarify that the Libero was available and designated to participate but did not take the court, which can be relevant for both match reporting and adhering to roster regulations. Keeping accurate records is crucial for maintaining the integrity of the match and for reference if any disputes or questions arise after the game regarding substitutions or player participation. This ensures that there is clear communication about player roles and can help maintain the flow and fairness of the competition.