http://espn.go.com/espn/story/_/page/Anniversary-Top20Athletes/20th-anniversary-top-20-athletes
20. Sidney Crosby
19. Barry Bonds
18. Mia Hamm
17. Floyd Mayweather Jr.
16. Usain Bolt
15. Brett Favre
14. Tim Duncan
13. Lance Armstrong
12. Lionel Messi
11. Shaq
10. Derek Jeter
9. Michael Phelps
8. Kobe Bryant
7. Peyton Manning
6. Serena Williams
5. Roger Federer
4. Tom Brady
3. Tiger Woods
2. LeBron James
1. Michael Jordan