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1 agos 2013 año - NFL announces more rule changes

Descripción:

The leagues bans helmet to helmet hits outside of the tackle box to try to reduce high impact hits to the head.

Añadido al timeline:

How football has gotten where they are with concussions

ByMatthew LaPorte

23 nov 2017

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650

fecha:

1 agos 2013 año

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