Bangkok:Star India shuttler Saina Nehwal was knocked out of the Yonex Thailand Open Super 1000 event after losing the women's singles second round to Thailand's Busanan Ongbamrungphan here on Thursday.
In a battle of attrition, Saina managed to grab the opening game but ran out of steam in the end, losing 23-21 14-21 16-21 in a match that clocked 68 minutes. It was Saina's fourth straight loss to the world number 12 Busanan.
In the men's singles, former world number one Kidambi Srikanth was forced to give a walkover to his eighth seeded Malaysian opponent Lee Zii Jia after pulling up his right calf muscle.
Indian men's doubles pair of Satwiksairaj Rankireddy and Chirag Shetty also bowed out of the competition after suffering a 19-21 17-21 defeat against second seeded Indonesian combination of Mohammad Ahsan and Hendra Setiawan.
Later in the day, Satwik and his mixed doubles partner Ashwini Ponnappa went down 12-21 17-21 to Hong Kong pairing of Chang Tak Ching and Ng Wing Yung to draw curtains on India's campaign.
Saina and Busanan engaged in some long rallies but it was the Thai shuttler who had the last laugh as she dished out some delectable drops and also stood out with better placement of shots.
Busanan opened up a 3-0 lead early on but Saina slowly came back and took a narrow 6-5 lead. A cross court shot helped Busanan turn the tables again as she led 11-9 at the break.
The Thai player maintained her two-point cushion till 15-13 but a precise stroke at the backline helped Saina to draw parity. The duo then moved neck and neck till 17-17 before Saina managed to eke out a two-point lead with a superb net shot.