i wonder if something carried with him from the ferrer match. i mean, yeah, it'd be a tall order for andy to beat nadal, but the scoreline doesn't seem like it got very competitive, especially the first two sets. looking at the stats, his first serve wasn't really there and that he kept up with his net rushes/approaches that i saw in the opening game.
but, yeah, the silver lining and all with the qf and it being nadal, after all.
eta: i just read his interview. pretty much what i figured, and understandable.