Hooliganism

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Across
  1. 3. The leader of a firm
  2. 4. Another word for hooligans
  3. 6. A group of hooligans supporting the same team
  4. 7. Going to a match at another stadium than the team's own
Down
  1. 1. The sport that hooligans fight over
  2. 2. A football fan who is violent and gets into fights
  3. 5. A normal, non-violent football fan