Why do Arsenal and Tottenham hate each other?

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Tags

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2. #moved
3. #rivalry
4. #ground
5. #tottenham
6. #their
7. #first
8. #fiercest
9. #north
10. #teams
11. #london
12. #other
13. #football
14. #begin
15. #arsenal
16. #derby
17. #recognised
18. #world
19. #played
20. #although
21. #rivals
22. #until