Do you ever use gamesmanship in the warm-up? Pretend you're worse than you are or intimidate the to other guy or something like this???
Nadal apparently hits much harder than everyone else in warm-up.
"I used to be a fairly good tennis player." --Rod Laver. Favs: Goran, Gasquet, Klahn, Seppi, Fognini, Dolgopolov, Cornet