Quote Originally Posted by Syntax Error View Post
Ali/Frazier is certainly up there, but I do believe that Borg -v- McEnroe in tennis is equal to their rivalry.

Borg & McEnroe's rivalry was so intense that it made more quit tennis at 26!
Personally I think the Federer Nadal rivalry is the biggest in tennis history.
Its hard to compare sports such as boxing a tennis. 3 fights Vs 30 matches, hitting a ball and hitting a head.
Federer and Nadal are a lot nicer to each other than Ali and Frazier were but they do the talking on the court.
In boxing, the build up is where the rivalry starts.