In football, the nickel position refers to a fifth defensive back added to the field in passing situations. This player is typically called the nickelback, and the formation is known as the nickel defense.
Key Points:
The nickelback usually replaces a linebacker to improve pass coverage.
They often cover slot receivers, tight ends, or provide zone coverage.
The position requires speed, agility, and strong tackling ability—almost a hybrid between a cornerback and a safety.