When can no substitutions be reported according to the rules?

In the context of the rules governing substitutions, the accurate assertion is that no substitutions can be reported while the game is in progress. This is based on the standard regulations which dictate that substitutions should be formally acknowledged and recorded prior to a play or during specific stoppages in the game. Allowing substitutions only at designated times helps to ensure the integrity of the game and prevents confusion regarding player eligibility and participation.

In contrast, teams can typically report substitutions at other times, such as before their turn at bat or during set stoppages in play. While the last inning might have unique protocols regarding substitutions depending on specific league rules, the ongoing nature of gameplay does not allow for substitutions to be made spontaneously. Injured players often have protocols as well, but substitutions would still need to follow the formal reporting process established by the rules. Therefore, the prohibition against reporting substitutions during active play emphasizes the structured nature of game management and player participation.