Badminton Rankings: Saina drops to No 9; Sindhu remains No 10

India's leading badminton player Saina Nehwal has dropped four places to be No 9 in the latest world rankings while P V Sindhu remains No 10 despite winning a silver medal in the Rio Olympics.

Kidambi Srikanth, who lost to Lin Dan in the Olympic quarter-finals, gained a place in the rankings released, on Thursday to be No 10.

Sindhu won India's only silver medal in Rio after beating three higher-ranked players -- Wang Yihan (World No 4), Nozomi Okuhara (3) and Tai Tzu Ying (7).

Saina failed to progress to the knock-out stage in Rio in a shock early exit from the competition. On her return home, she underwent a knee surgery and is likely to be out of action for as long as four months.