Cornerback
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A cornerback is a member of the defensive backfield or secondary in gridiron football. Cornerbacks cover receivers most of the time, but also blitz and defend against such offensive running plays as s
A cornerback for Trinity College rises to intercept a pass
Green Bay Packers cornerback Charles Woodson (21) covering San Francisco 49ers wide receiver Randy Moss (84).
40-yard dash
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The 40-yard dash is a sprint covering 40 yards. It is primarily run to evaluate the speed and acceleration of American football players by scouts, particularly for the NFL draft but also for collegiat
Cornerback
…and wide receiver, backpedaling, executing single and zone coverage, disrupting pass routes, block shedding, and tackling. Cornerbacks are among the fastest players on the field. Because of this, they are frequently used as return specialists on punts or kickoffs. The cornerback's chief responsibility is to defend against the…
A United States airman running a 40-yard dash