What is a transfer ban in football?

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Tags

1. #transferring
2. #which
3. #another
4. #action
5. #transfer
6. #moves
7. #football
8. #rights
9. #under
10. #whenever
11. #refers
12. #usually
13. #registration
14. #association
15. #contract
16. #professional
17. #clubs
18. #between
19. #taken
20. #player
21. #known
22. #compensation