What Gisele Bündchen just said about Tom Brady should bother every NFL fan

Wednesday's most interesting bit of NFL news was broken by .... Gisele Bündchen, naturally. 
The supermodel wife of New England Patriots quarterback Tom Brady revealed that her husband has had multiple concussions during his career, including one suffered last season. 
But this isn't just gossip from a celebrity family — it's actually big news, for a couple reasons. 
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First, Brady has reportedly