Tennis is Switzerland's saving grace when it comes to world sports. The most famous male athlete is undoubtedly Roger Federer. The most famous female athlete is probably Martina Hingis.
The most famous athlete in Chile is Marcelo Rios who reached number one in the world in Tennis.
This answer may vary depending on what you define as "successful," but generally, Michael Jordan is usually considered the most famous American athlete of his time.
Pele
eric heidt
Freddy Flintoff
Muhammad Gaffer
Michael Jordan
Dan Marino
Lupe. Lupe.
Babe Ruth.
jimbob jenkinson