Originally Posted by RAFA2005RG
Federer lost in the 1st Round of Wimbledon on 3 occasions. Grass never came as naturally to Federer as clay came to Nadal. Federer had to work on it, and evolve his game. Nadal, clay tennis is an inborn ability, even more than Sampras or Mac on grass.
Grasss never come as a natural surface to anyone. Players don't get enough exposure on grass during their young days for that to be a natural surface.
Europeans play more on clay and Americans more on hard courts. So clay come as natural surface more to europeans and vice versa for Americans