What a life time of playing football can do to your brain

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Across
  1. 1. The first formal NFL player was diagnosed with.
  2. 5. Get smashed
  3. 6. Isn't just a contact sport.
Down
  1. 1. Are incredibly common place in professional football
  2. 2. Isn't just a contact sport.
  3. 3. Very serious risk of
  4. 4. The first formal NFL player was diagnosed with.