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16 mar 2011 año - NFL changes kick-off rules

Descripción:

The NFL moves up kick-offs to the 35-yard line in hopes to reduce head on collisions

Añadido al timeline:

How football has gotten where they are with concussions

ByMatthew LaPorte

23 nov 2017

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646

fecha:

16 mar 2011 año

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~ 14 years ago

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