Sharapova: once more into the breach

So, Maria is through, and so is Kvitova.  I imagine that Petra is the last person left that  Maria wanted to see across the net.  It's a somewhat classic pattern that she's played well to get this far, a pattern she's sustained since the French Open last year -- can she close the deal now?   What's the ova-unda on this match? (I apologize - had to.)

She has to play smart and not try to out-slug Kvitova to win.

There's Something About Maria