During a timeout, what happens if a team sends in an improper player?

In this situation, if a team sends in an improper player during a timeout, the correct outcome is that 5 yards are assessed for illegal substitution. This is due to the fact that all teams must adhere to specific player rules regarding substitutions, even during timeouts. When a team improperly sends in a player who is not eligible to participate, it is considered an illegal substitution.

The rules are designed to ensure fair play and maintain the integrity of the game, thus when an incorrect player is sent in, the penalty is enforced to hold the team accountable for maintaining proper personnel as specified. By assessing a 5-yard penalty for this infraction, the game can continue with the appropriate team composition.

This enforcement serves as a deterrent and encourages teams to manage their player substitutions responsibly, even during the moments of rest provided by timeouts. It reinforces the understanding that all players on the field must meet eligibility requirements and adhere to game regulations at all times.