In Badminton, World Champion P.V. Sindhu suffered a shock defeat to lower-ranked Pai Yu Po of Chinese Taipei in the women's singles opening round of China Open in Fuzhou today.

World No.6 Sindhu, who made early exits in China, Korea and Denmark, lost 13-21, 21-18 19-21 to world No.42 Pai.

In the men's singles also, H.S. Prannoy, who has recently recovered from dengue, faltered in the opening round, losing 17-21, 18-21 to Denmark's Rasmus Gemke.

But India's doubles campaign was off to a good start. Satwiksairaj Rankireddy gave the Indian camp reason to be cheerful with twin victories in the men's and mixed doubles categories.

Thailand Open champions Satwik and Chirag Shetty, who had reached the French Open finals last month, defeated the American pair of Phillip Chew and Ryan Chew 21-9, 21-15 to set up a second-round meeting with sixth seeds Japanese Hiroyuki Endo and Yuta Watanabe.

Earlier, Satwik and Ashwini Ponnappa defeated Canada's Joshua Hurlburt-Yu and Josephine Wu 21-19, 21-19 to make a positive start in the mixed doubles competition. They will face fifth-seeded Korean pair of Seo Seung Jae and Chae Yujung next.

The women's doubles pair of Ashwini Ponnappa and N Sikki Reddy was blown away 9-21, 8-21 by Chinese pair of Li Wen Mei and Zheng Yu.