+A **penalty** in [American Football](/wiki/american_football) is a sanction enforced for a rule infraction, or [foul](/wiki/foul), committed by a player or team. It typically results in a loss or gain of [yardage](/wiki/yardage), moving the ball from the spot of the foul and significantly influencing game strategy.
+## See also
+- [Rules](/wiki/rules)
+- [Officials](/wiki/officials)
+- [Down](/wiki/down)
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