Are there any NFL teams that have never played each other?

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4. When did high school football start?
5. What NFL team plays in London 2018?
6. Who is playing the first NFL game 2019?
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Tags

1. #browns
2. #played
3. #jacksonville
4. #teams
5. #lions
6. #jaguars
7. #houston
8. #texans
9. #cleveland
10. #never
11. #championship
12. #detroit
13. #current
14. #iteration
15. #major
16. #there