Originally Posted by Dragan
BS. If time machine exists, any today's top athlete would have beat any top athlete from 20 years ago, in any sport, not only tennis. Sad but true.
There's no reason to be sad because that's how it should be. Every sports evolve. Actually it would be sad if sports regress.
Tier1(goat): Federer; Tier 1.5: Laver, Sampras, Nadal, Borg;
Tier 2: Lendl, Connors, Rosewall; Tier 2.5: McEnroe, Agassi