In the WTA Championships White Group, today's scores included Radwanska--1, Kvitova--0. For the first time, Agnieszka Radwanska beat Petra Kvitova, and she beat her in straight sets--6-3, 6-2. Kvitova had won in their three previous meetings. The defending champion did save two match points, but she also made 41 unforced errors.
Earth to Petra: It's an indoor court. You're the defending champion. It's the end of the season. Please join us!
Also in the White Group, Maria Sharapova defeated Sara Errani 6-3, 6-2. In the Red Group, Serena Williams beat Angelique Kerber 6-4, 6-1.
Tomorrow, there'll be Red Group action as Williams plays Li Na and Victoria Azarenka plays Kerber. In the White Group, Sharapova will face off against You-Know-Who.