Don't bash me for asking a stupid question, I just want to know why, physically explained, does Nadal's brutal forehand work better in terms of forcing errors from opponents with one-handed backhand, for me personally it's easier to handle the high bounce from topspin with my one-handed backhand, than I did back in the days I played two-handed. But if you look at the stats, every player with one-handed backhand on the tour has ridiculously bad H2H with Nadal, much more so than those with two-handed, so I'd be happy to know why does Nadal's forehand hurt one-hander more. Simple answer would be enough.