On Thursday Serena guaranteed her place in the Australian open final with her dominating 6-3, 6-4 victory over Elena Dementieva.

With the roof closed at Rod Laver Arena to protect the players and fans from outside temperatures topping 111 degrees, Williams played her best match of the tournament.

I haven't moved like that for a while, so I was a little shocked, she said to the Associated Press.

Williams has a sequence of winning the Australian Open every alternate year since 2003.