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20 dez 2009 ano - New Return-To-Play guidelines

Descrição:

The NFL announces stricter return-to-play guidelines saying a player that exhibits concussion symptoms shouldn't play the same day.

Adicionado na linha do tempo:

How football has gotten where they are with concussions

ByMatthew LaPorte

23 nov 2017

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650

Data:

20 dez 2009 ano

Agora

~ 15 years ago

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