How should a referee respond to a serious foul that resulted in injury?

In the situation of a serious foul that results in injury, the referee's response must align with the severity of the offense and the safety of the players on the field. Showing a red card and dismissing the player is appropriate because a serious foul involves reckless or excessive force, which endangers the safety of an opponent.

By issuing a red card, the referee signals that such conduct is unacceptable and ensures that the offending player is removed from the game, promoting fairness and safety. This action also serves as a deterrent to other players, reinforcing the importance of maintaining control and playing within the rules for the welfare of all participants.

It is essential to recognize that a verbal warning or a yellow card would not adequately address the severity of the foul and the resultant injury. A drop ball restart would also be inappropriate in this context, as it does not address the misconduct committed by the player. Showing a red card is the necessary action to take in fostering a safe playing environment following a serious foul.