The second seed and two-time World Championship silver medallist was the highest-profile casualty on the third day of the event, part of the BWF Superseries, as she was stunned by Tai.

The player from Chinese Taipei secured her quarter-final berth by virtue of a 14-21, 21-18, 21-16 success and will go up against fifth seed Wang Shixian of China tomorrow.

There were no such worries for top seed Carolina Marin of Spain, who enjoyed comfortable progress to the next round as she beat home hope Jing Yi Tee 21-13, 22-20.

The Spaniard will entertain Chinese sixth seed Wang Yihan in the last eight.

Men’s singles top seed and defending champion Chen Long defended conditions at the Stadium Malawati after he had booked his place in the quarter-finals with a straight games win over Vincent Wong of Hong Kong.

The Chinese star, OIympic bronze medallist at London 2012 and a two-time world champion, cruised into the next round as he overcame Wong 21-17, 21-12.

The 27-year-old, who is the current world number one, faces a tough task in the last eight as he will go up against team-mate Tian Houwei, who is seeded eighth.

Tian had overcome Hsu Jen Hao of Chinese Taipei 23-21, 21-18 to set up a meeting with his formidable compatriot.

A number of players had reportedly complained about the wind and leaks inside the venue but Chen feels the claims have been “blown out of proportion”.

“Much has been said about the windy conditions and some leaks in the stadium,” he said.

“But it something all players have encountered.

“To me it is nothing.

“To me the shortcomings have been blown out of proportion.”

There was disappointment for the host nation in the men’s doubles as Commonwealth Games gold medallists Goh V Shem and Tan Wee Kiong were beaten by South Korean top seeds Lee Yong-dae and Yoo Yeon-song, who claimed a dominant 21-13, 21-11 victory.

Action at the Malaysia Open continues tomorrow.