Hard luck,Daniela. No fun playing Serena when you're feeling under the weather.

I'm very proud you made it to the 4th round with your illness.

Like everyone else, I'm sorry for Daniela. She was in a no-win situation, going against a top player in top form while being far less than 100% herself. Serena and Venus destroyed Yan and Zheng, who are a good team, 6-0 and 6-0 in doubles, so it was definitely the wrong day to play a Williams sister.

Anyway, there are ample reasons for optimism going forward as others have said. California, here we come!

Yes, and Venus trounced Ana Ivanovic 6-1 in the first set of their match before the Serb injured her groin when serving an ace. I can't see anything other than a Venus-Serena singles final, and a spot in the doubles final for both of them.

So after yesterdays match Serena - Azarenka, everybody knows that it wasn't Daniela playing that bad, but much more Serena playing unbelievable.

Just a short review:
Daniela clearly wasn't 100% and in a quite good form - result 4 games against Williams including 1 break.
Azarenka is totally 100% and in a really good form at the moment - result 5 games against Williams including 1 break.

So I think Daniela summarized the match in her interview quite good. Serena is in an unbelieveable form at the moment. She plays with so much power, making only few errors and has a really great footwork.

IMO nobody can stop her this year in Wimbledon, also Venus won't be able to.