The WTA Women's Championship gets underway in Dubai today. The tournament features an array of nine out of world's top 10 women's tennis players sweating it out for the title. Billed as the greatest tennis show in the Middle East it will feature the new World number One, Serena Williams, number two Victoria Azarenka, number three Maria Sharapova as well as former Grand Slam winners Petra Kvitova, Li Na, Ana Ivanovic and Samantha Stosur, and defending champion Agnieszka Radwanska.