Lennox Lewis presented his list of the greatest boxers in history

5. Joe Louis (66-3, 52 KOs)

4. George Foreman (76-5, 68 KOs)

3. Marvin Hagler (62-3-2, 52 KOs)

2. Jack Johnson (53-11-8, 33 KOs)

1. Muhammad Ali (56-5, 37 KOs)

A slightly longer list was recently presented by long-time HBO expert Larry Merchant, and it looks as follows:

10. Joe Frazier (32-4-1, 27 KOs)

9. George Foreman (76-5, 68 KOs)

8. Mike Tyson (50-6, 44 KOs)

7. Evander Holyfield (44-10-2, 29 KOs)

6. Jack Dempsey (53-6-8, 43 KOs)

5. Rocky Marciano (49-0, 43 KOs)

4. Lennox Lewis (41-2-1, 32 KOs)

3. Joe Louis (66-3, 52 KOs)

2. Larry Holmes (69-6, 44 KOs)

1. Muhammad Ali (56-5, 37 KOs)