Originally Posted by Nadal_Power
Yeah, he proved that in one match
And they played on same grass.. for sure
2001 grass was still fast. The surface gradually slow down by the year and bounce higher. The only fact we have is Agassi and Fed played Sampras on grass and Fed handle his serve better than Agassi.
Tier1(goat): Federer; Tier 1.5: Laver, Gonzales, Sampras, Nadal, Borg;
Tier 2: Lendl, Connors, Rosewall, Tilden; Tier 2.5: McEnroe, Agassi