Why Chelsea are called pensioners?

Related questions

1. What qualifies you to be a Chelsea pensioner?
2. Are there any Chelsea Pensioners left?
3. Who can be a Chelsea pensioner?
4. Who are West Ham rivals?
5. Are there any Chelsea pensioners still alive?
6. How many trophies does Chelsea have compared to Arsenal?
7. Can you visit the Chelsea pensioners?
8. Why did Steve Clark leave Def Leppard?
9. Who are Chelsea's rivals?
10. What happened to Def Leppard's drummer?

Tags

1. #chelsea
2. #dropped
3. #until
4. #veterans
5. #famous
6. #drake
7. #coach
8. #british
9. #called
10. #their
11. #instructions
12. #former
13. #association
14. #became
15. #under
16. #player
17. #because
18. #hospital
19. #nickname
20. #pensioners