Who were Muhammad Ali's rivals?

Answer 1

Here's the Top Opponents that Ali fought:

1. George Foreman (Won 1/1)

2. Joe Frazier (Won 2/3)

3. Sonny Liston (Won 2)

4. Ken Norton (Won 2/3)

5. Floyd Patterson (Won 2)

6. Jerry Quarry (Won 2)

7. Oscar Bonavena (Won 1/1) 8. Jimmy Ellis (Won 1/1) 9. Zora Folley (Won 1/1) 10. Ernie Terrell (Won 1/1) 11. George Chuvalo (Won 2)

12. Ron Lyle (Won 1/1)

13. Earnie Shavers (Won 1/1)

14. Joe Bugner (Won 2)

15. Bob Foster (Won 1/1)

16. Mac Foster (Won 1/1) 17. Karl Mildenberger (Won 1/1)

18. Archie Moore (Won 1/1)

19. Jimmy Young (Won 1/1)

20. Cleveland Williams (Won 1/1)

21. Doug Jones (Won 1/1)

Answer 2

Doug Jones is an early opponent before he won the championship. Many thought Ali (Clay, then) lost this fight. Henry Cooper the legend from England boxed Clay/Ali both prior to the title reign and while Ali held championship.

Answer 3

Ali's last fight was December 11, 1981 against Trevor Berbick. He lost a 10 round unanimous decision.