Berlin – Victoria Azarenka stays top of the women's tennis rankings released Monday at the start of the 2013 season.
The Belarussian remains on 10 595 points ahead of Russia's Maria Sharapova, who is unchanged on 10 045, and Serena Williams of the United States, who improves slightly to 9 750.
China's Li Na meanwhile moves up a place to sixth, while Sara Erani of Italy slips to seventh.
WTA rankings as of January 7 (previous ranking in parenthesis):
1. (1) Victoria Azarenka, Belarus, 10,595 points
2. (2) Maria Sharapova, Russia, 10,045
3. (3) Serena Williams, United States, 9,750
4. (4) Agnieszka Radwanska, Poland, 7,505
5. (5) Angelique Kerber, Germany, 5,550
6. (7) Li Na, China, 5,255
7. (6) Sara Errani, Italy, 5,100
8. (8) Petra Kvitova, Czech Republic, 5,085
9. (9) Samantha Stosur, Australia, 4,135 10. (10) Caroline Wozniacki, Denmark, 3,765 – Sapa-dpa