Solve the crossword with facts on football

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Across
  1. 4. A newly illegal idea
  2. 6. Comes for more slipperyness
  3. 8. competition betweeen Professional football teams
  4. 9. Most popular song played at football songs
  5. 11. A Chinese sport played roughly
Down
  1. 1. amount of teams in the NFL
  2. 2. Name of reporter who documented the new law
  3. 3. Color of the fourth page
  4. 5. Fluffy Tackler
  5. 7. Helps prevent pain
  6. 10. Man who created football