I am a big fan of Grisho (not all Lithuanian tennis fans hate Dimitrov you know, on the contrary, there are only a few of those who really don't like him, others are either indifferent or support him, so please don't judge us all by those few haters
) but I think Wawrinka is just too strong at the moment. I think Grisho would stand a fighting chance if he was at his best and Wawrinka was a bit off form, but I was watching Wawrinka - Gabashvili last night and Stas looked really really good. Like, good enough to go very deep in this AO. Granted, Dimitrov seems to be in an amazing form too, so it should be a very interesting match, but I think Wawrinka will win in the end. Don't want to guess on the number of sets tho, could be anything!