What happens if a player on defense is found guilty of personal foul during a play?

A personal foul committed by a defensive player during a play results in a significant penalty because it reflects serious misconduct that can compromise player safety and the integrity of the game. The standard penalty for a personal foul is 15 yards. This penalty is assessed from the end of the play, meaning that after the play concludes, the yardage lost for the personal foul is added to the end of that play's result.

This procedure ensures that the penalty addresses the serious nature of the foul while also maintaining the proper flow of the game. As a result, the offensive team will benefit from the additional yardage, which can impact their field position and strategy for the following plays. This is why the application of this penalty is positioned as it is, contrasting with other types of penalties that might have different enforcement rules.