I thought the round of 16 match between Kateryna Bondarenko and Gisela Dulko might be interesting. It was, but not in the way I expected. I wasn't able to watch the match, but the stats indicate that Dulko served badly--really badly--and Bondarenko played a very clean match, which she won 6-0, 6-0. Apparently, Dulko was overcome by the occasion and just could not get into the match. She's a very good player, and this is a very surprising result.
I was also unable to watch the match between Yanina Wickmayer and Petra Kvitova, and I really wanted to. Not surprisingly, Kvitova made a lot of unforced errors. And Wickmayer, up 5-2 in the third set, was almost broken at 5-all, but wound up winning the match 4-6, 6-4, 7-5.
There was a significant upset in doubles today: 11th seeds Yan Zi and Zheng Jie took an important step in their comeback by defeating 5th seeds Daniela Hantuchova and Ai Sugiyama, 4-6, 6-4, 6-4.