Hamburg - American Serena Williams remains top of an unchanged women's tennis rankings issued Monday by the WTA ruling body.

Williams, who withdrew from the semi-finals of the Open GDF Suez tournament in Paris with an injury, giving Elena Dementieva a walk- over into the final, leads the rankings by 482 points from Russian Dinara Safina.

WTA top 10 as of February 16 (previous ranking in parenthesis):

"#" 1. (1) Serena Williams, US, 9,632 2. (2) Dinara Safina, Russia, 9,150 3. (3) Jelena Jankovic, Serbia, 8,580 4. (4) Elena Dementieva, Russia, 8,286 5. (5) Vera Zvonareva, Russia, 6,770 6. (6) Venus Williams, US, 6,144 7. (7) Svetlana Kuznetsova, Russia, 5,510 8. (8) Ana Ivanovic, Serbia, 5,492 9. (9) Nadia Petrova, Russia, 3,882 10.(10) Agnieszka Radwanska, Poland, 3,867 "#" (dpa)