Originally Posted by World Beater
ok, so your definition is
clean = flat?
Well these days you need to be a ridiculously clean hitter to be able to hit flat.
But Nalbandian doesn't hit that flat, he can come up with spin as well. Similar with Haas. On the women's side, Seles struck the ball really cleanly, but hit with alot of spin.
It's basically one way of being able to hit shots, most guys would be afraid of. Yeah, I know Federer can do that too, but not because his hitting is really clean.
Watch the first point even and see the difference between their shots. That is what is talked about.