World number one Serena Williams of the United States has made into the semifinals of the women's singles event of the US $4.5 million Sony Ericsson WTA Championships in Doha.
The top seeded Serena defeated Russian Elena Dementieva in straight sets 6-2, 6-4 in the quarterfinal to become first player to reach into the last four of the tournament.
Speaking to the media, Serena said that Dementieva is really a good and fittest player in the tournament, and her game will definitely become better and better in the upcoming years.