Ferrer has shown that he will struggle on this surface in windy conditions and against big servers. Yeah he is a bull and great returner but against the big guys on their games ferrer has a slim chance.
Anything can happen when betting against ferrer but Del potro should overpower him here.
I like Delpo here as well, put a little on him -1.5 sets. Serve will be crucial as already said, but also his big ground strokes if he's on to his game on this already fast surface should be troublesome for Ferrer. Ferrer did not impress me vs Roddick.