Sania Mirza's free fall continued with the Indian tennis ace sliding seven places to 70th in the latest WTA rankings issued on Monday.

Sania, who had to concede her opening round game in the Beijing olympics owing to her wrist injury, has 470 points to her credit in the rankings headed by Serbian Ana Ivanovic.

The Hyderabadi had a her career-high 27th exactly a year ago, but a string of poor shows and a recurring wrist injury saw her sliding down in the rankings.

She is also not participating in the fourth and last Grand Slam of the year - US Open - because of the nagging injury.