Radwanska looked very convincing in her 3rd round match vs. Watson, who wasn't really playing badly at all. Solid depth and location on her groundstrokes, and quite a few threading the needle type shots. 2nd serve looks like it will be a liability against the top ladies, though.
Ana Ivanovic up next, and Aga should be able to deal with her without too much of a fuss. I love Ana, but I don't think she's back to an elite form yet, and Aga shows no sign of pulling a WTA-style mental breakdown. 12 match wins in a row probably does that to ya!