Who was the best fighter in history?

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Tags

1. #sport
2. #former
3. #greatest
4. #history
5. #fighter
6. #heavyweights
7. #american
8. #generally
9. #considered
10. #never
11. #would
12. #lived
13. #bruce
14. #professional
15. #january
16. #among
17. #muhammad
18. #boxer