Sometimes when tennis players don't feel the pressure of the tournament on their shoulders, they play a better tennis. They feel themself more relaxed during an exhibition match than a tournament match. 

Great quality videos. For the match the camera person should have climbed up one of the top stands so we could watch the whole court view as opposed to one player at a time. Made me feel like I was watching them practise  hitting the ball rather than watch a match.

The kids clinic was fun. Thanks for the links, teddy.

@Dartagnan: Not what I meant

@Paul: You may be right, although if you ask me, she was just imitating Andy Roddick (or Maria when she was using that motion). The girl in the white and pink looked pretty good, too. There was also a young boy (yes, I know we don't care about those here) in red, white and black who looked good.