Did you attend both of her matches at the US Open? How is she doing handling her emotions? She used to be a very volatile player.
She is acting quite uncharacteristically calm and focused. She has a lot of "come on's" and "kadima's" when she hits a good shot, but not many negative emotions. When she was down 3-5 against Sachia she was just pumping herself up after every point. Maybe a few times she gave an angry glance to her coach when she missed, but she totally kept it under control. She has great shots. Can't attend today's match, but it will be live streamed, so you will get to see it for yourself.