In the first semi - final Victoria Azarenka beat Flavia Pennetta in straight sets. This result was not unexpected and Victoria was able to win and set up a final match against Serena Williams.
In the second semi - final Serena beat Na Li in straight sets and I was little surprised with the ease in which Serena won this match.
In the first set Na Li did not win a game and the second set only really became, competitive at the end by this time it was a little too late for Na Li.
The final between Serena Williams and Victoria Azarenka will take place about 9.30pm UK time.
Shortly after winning her singles semi-finals match, Serena then played doubles with her sister Venus. They lost in straight sets to Andrea Hlavackova and Lucie Hradecka.
Serena appeared to be a little tired from her earlier singles match, however Lucie and Andrea played well to win this match.