In American football, a spy is a defensive playerassigned to cover the opposing team's quarterback man-to-man.
This strategy is generally used against "dual-threat" quarterbacks who are capable of rushing when passing plays break down. The defensive player floats near the line of scrimmage, following the quarterback's movements.[1]
Spies are also sometimes known as "keys".[2]Generally, spies are linebackers.[3]
This strategy is generally used against "dual-threat" quarterbacks who are capable of rushing when passing plays break down. The defensive player floats near the line of scrimmage, following the quarterback's movements.[1]
Spies are also sometimes known as "keys".[2]Generally, spies are linebackers.[3]
