open, she was very emotionally volatile against sam stosur.ng back at the end of last year, and then at the french open this year, fell apart emotionally in the first round, was crying on the court after losing the second set. couldn't handle all the anxiety. but something happened, mary, second week of wimbledon. the old serena came back. and she has been unbeatable since that moment. >> well, serena was the overwhelming favorite against radwanska in the wimbledon final last month and her nerves did show a bit before she self-corrected. she struggles only, it seems, against people where she's the overwhelming favorite, like sam stosur. like the first round of the french open this year. >> the difference is her serving was nowhere near where it is right now. >> and you know, what i've long said about women's tennis, the best server wins the title. >> that's dominance. i mean, these are the best players in the world, and serena's routinely scoring 6-0 victories in sets. >> she's got something to prove, doesn't she? she has got a point to prove.