A lot of this is luck of the draw. If a player has the game style that is suited to the court, conditions, string technology, and game style. I do not think that Nadal would have done as well in the 80's because the string technology was different and the speed of the surface and the balls were different. Hence I think Agassi would have done better today. They are all great players it is just lucky as to all of these factors when they are in their prime.
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