Re: Let's talk about the Kvitova-Sharapova rivalry.
For what it's worth though, Sharapova typically does very well against one dimensional players(all out offense or all out defense.) It's the aforementioned players like Serena, Vika, Justine, Amelie and Kim(?) who can give her trouble. You have to have great defense AND offense and a little something special to make her uncomfortable. She slays Petra, Lindsay, Ana(IIRC) on the offensive end of the spectrum, and Wozniacki, Jankovic, Radwanska(when playing well anyway) on the defensive end. Of course mental resilience is the #1 thing. In light of this, I find Petra to be in a tough situation here. She has a good slice and can handle herself at the net, so she COULD in theory put herself in the group of players who perform well against Sharapova, but I just don't think she has the determination to develop these aspects of her game into true weapons. She could be a force if she does.