Miklos Feher was a professional soccer player.
The sport of boxing.
Football
Soccer is known to be the most popular and most played sport in the world. Thus, it is safe to assume that it is the best sport in the world.
Wrestling
Race-Car Driver.
Yodelling
The world wrestling federation. (wrestling)
Marcelo Garcia is best known for Jiu-jitsu sport. It can be said that he is the best pound for pound submission grapplers in the world. He has won 5 championship titles and has a black belt in Brazillian Jiu-jitsu.
Steve Redgrave is a five-time Olympic gold medalist in the sport of rowing.
If you are English it will be football, Americans will be soccer
Renato Cappellini is best known for being a professional soccer (football) player. You can get more information about Renato Cappellini at the Wikipedia.
The most popular sport at Duke University is basketball.