Berlin – Serena Williams continues at the top of the women's tennis rankings in an unchanged top 10.

The US player has 9,231 points, slightly down from last week's 9,510, but still well clear of China's Li Na on 6,960, the WTA rankings released Monday show.

Romania's Simona Halep is third ahead of Wimbledon champion Petra Kvitova of Czech Republic.

WTA top 10 as of July 21 (previous ranking in parenthesis):

1. (1) Serena Williams, United States, 9,231 points

2. (2) Li Na, China, 6,960

3. (3) Simona Halep, Romania, 6,785

4. (4) Petra Kvitova, Czech Republic, 6,070

5. (5) Agnieszka Radwanska, Poland, 5,330

6. (6) Maria Sharapova, Russia, 4,881

7. (7) Eugenie Bouchard, Canada, 4,460

8. (8) Angelique Kerber, Germany, 4,365

9. (9) Jelena Jankovic, Serbia, 3,900

10.(10) Victoria Azarenka, Belarus, 3,812 – Sapa-dpa