Indian shuttler Saina Nehwal pulled out during the first-round game of the Korea Open against Kim Ga Eun due to poor health condition.
Parupalli Kashyap was the lone Indian to survive in the singles event after star shuttlers P V Sindhu, Saina Nehwal and B Sai Praneeth made first-round exits at the Korea Open badminton tournament here on Wednesday.
Kashyap registered a comfortable 21-16 21-16 over Lu Chia Hung of Chinese Taipei in a men's singles match that lasted 42 minutes.
London Olympic bronze medallist Saina Nehwal was trailing 21-19, 18-21 and 1-8 against South Korea's Kim Ga Eun when she was forced to retire.
Saina's husband and personal coach Kashyap said she retired because of gastroenteritis problem.
"It seems she had a relapse of the gastroenteritis that bothered her early in the year. She was feeling dizzy and vomited yesterday. In fact, she went to the stadium straight from the hospital today," he said.
"Still she could have won but when it went to three games, she didn't have anything left in her tank. We need to check with the doctor when we go back. It has been a difficult year for her."
Saina had a 2-0 head-to-head record against Eun in their previous matches.
Saina has had a tough year owing to injuries. She won the Indonesia Open at the beginning of the season but has struggled since then. At the China Open Super 1000 event last week, she made a first-round exit.
Sindhu also seems to be facing a rough patch after the high of winning the World Championships. The Olympic silver-medallist was knocked out of the China Open by Thailand's Pornpawee Chochuwong in the second round last week.
Interestingly, the 26-year-old former winner here had defeated Zhang en route her World Championships gold at Basel.
The Chinese-born American prevailed over the Indian twice last year at the India Open and Denmark Open.
