Exhibition doesn't say much.
That's like looking for dropshot in the senior tour and compare to pro who actually played in the real match. Big LOL
Tier1(goat): Federer; Tier 1.5: Laver, Gonzales, Sampras, Nadal, Borg;
Tier 2: Lendl, Connors, Rosewall, Tilden; Tier 2.5: McEnroe, Agassi