Originally Posted by toly
Sharapova's grip is close to SW/Western. According to photo above she cannot use wrist radial deviation to create topspin. This motion moves the racquet away from the ball. That is why she employs very energetically wrist ulnar deviation that moves the racquet forward.
OK, I think it's because this picture looks like it was taken after contact, but I don't see why she couldn't use wrist radial deviation if the picture is of before contact to brush up on the ball. Since the racquet face is a little more angled down to the ground and pointing between 1 and 2o'clock out from her body, it would just naturally end with the wrist turning over so her hand would essentially be making a "thumbs down." Does that not count as radial deviation?