What is a clean sheet in FIFA?

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Tags

1. #sheet
2. #details
3. #match
4. #footballing
5. #describes
6. #conceded
7. #against
8. #maintained
9. #scored
10. #during
11. #concede
12. #which
13. #would
14. #allow
15. #referred
16. #empty
17. #clean
18. #goals
19. #column
20. #having