What is the point of NBA summer league?

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Tags

1. #summer
2. #together
3. #national
4. #instead
5. #players
6. #competition
7. #organized
8. #known
9. #basketball
10. #rosters
11. #league
12. #regular
13. #their
14. #rookie
15. #affiliate
16. #sophomore
17. #different
18. #season
19. #association
20. #including
21. #vegas
22. #teams