Federer - Murray
Del Potro - Gasquet
Djokovic - Davydenko
Nadal - Roddick
I like this line up.
Roddick vs. Nadal is an interesting match up as they don't play very often.
Murray has a winning record against Federer so that could give him a good chance to progress far.
Gasquet would stand a serious chance against Del Potro and it would be an interesting match up.
Davydenko and Djokovic would be an interesting contrast of styles and Davydenko would have a serious chance of winning this.