Is Serena Williams Number 1 in the world?

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Tags

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2. #player
3. #ranked
4. #world
5. #jameka
6. #tennis
7. #singles
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9. #eight
10. #separate
11. #serena
12. #women
13. #professional
14. #ranking
15. #association
16. #reached
17. #williams
18. #american
19. #occasions
20. #september