The world No 4 Ratchanok, moving poorly and apparently still struggling with an ankle injury she sustained on Tuesday, was bombarded with powerful smashes by the world No 10 Saina Nehwal of India, who won the match 21-16 21-19 .

“I was not myself. I made too many unforced errors as I let myself under pressure. When you expect so much, you end up in tense and cannot play your standard,” said Ratchanok who vowed to bounce back in the Asian Games later this month.

But Thailand still had one hope left in the women’s doubles. Jongkolphan and Rawinda lived up to their seeded billing as they moved past Maiken Fruegaard and Sara Thygesen of Denmark 21-19 21-13 in 45 minutes.

“We’ve played them many times and knew how to handle them.

But after 17-5 in the first game, we changed some game plan and let them fought back. But we regained our focus and took solid control from then on,” said Jongkolphan, who reached 11 quarter-finals out of 12 events this year with Rawinda.

The Thai pair next face Japan’s 11th-seeded Mayu Matsumoto and Wakana Nagahara, who hold a 2-0 record against them.

In fact, the Japanese duo deprived the Thais of reaching all quarter-finals this year, handing the Thais 21-14 21-18 in the second round of the Indonesia Open in April.

However, Chayanit Chaladchalam and Phataimas Muenwong failed to emulate their two compatriots, losing to Della Destiara Haris and Rizki Amelia Pradipta of Indonesia 21-16 21-12.

In mixed doubles, Dechapol Puavaranukroh and Sapsiree Taerattanachai went down to Denmark’s fourth-seeded Mathias Christiansen and Chirstinna Pedersen 21-15 21-23 21-10.