These Are the, Most Successful Athletes, of the 21st Century.<br />Since the turn of the 21st century, many athletes have<br />dedicated their lives to becoming the best of the best. .<br />Most fall short, but a select few have succeeded<br />in establishing themselves as elite athletes. .<br />24/7 Wall St. has determined who sits<br />at the top of the totem pole by reviewing a number<br />of reputable sources and athletic databases. .<br />Here are the top 20 most successful<br />athletes of the 21st century.<br />1. Abby Wambach .<br />2. Cristiano Ronaldo.<br />2. Cristiano Ronaldo.<br />3. David Ortiz.<br />4. Floyd<br />Mayweather.<br />5. Kevin Durant.<br />6. Kobe Bryant.<br />6. Kobe Bryant.<br />7. LeBron James.<br />8. Lionel Messi.<br />9. Michael Phelps.<br />9. Michael Phelps.<br />10. Novak Djokovic.<br />10. Novak Djokovic.<br />11. Rafael<br />Nadal.<br />12. Roger<br />Federer.<br />13. Serena Williams.<br />14. Shaquille O’Neal.<br />15. Shaun White.<br />16. Simone Biles.<br />17. Stephen Curry.<br />18. Tiger<br />Woods.<br />19. Tom Brady.<br />20. Usain Bolt.<br />20. Usain Bolt
