World No. 10 Saina blew 17-12 and 9-6 leads in the two games to go down fighting against Sung in a 54-minute battle to drew curtains on India's campaign at the prestigious tournament here last night.
Olympic silver medallist P V Sindhu had also lost her quarterfinal match in straight games to World No. 1 Tai Tzu Ying of Chinese Taipei.
The 26-year-old from Hyderabad, who had clinched the Malaysia Masters Grand Prix Gold, had to do a catch up act right from the start but she managed to grab a four-point lead at the break after reeling off four straight points having levelled the scores at 7-7.
After the breather, Saina further consolidated her advantage to reach 17-12 at one stage but then the Korean pocketed eight points on the trot to grab three game point advantage.
In the second game, the third seeded Korean opened up a 3-0 lead before Saina turned the tables and moved to a 9-6 lead. The Indian entered the break with a slender 11-9 lead but Sung once again clawed back and slowly distanced herself to reach a three match point advantage yet again.
A fighting Saina once again saved the three match points but only to allow Sung grab the crucial two points to end her campaign.
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