Olympic champion Xu Lijia of China has pulled out of the sailing World Cup leg here due to injury.
Liu Wei, director of the competition organising committee, said Xu was injured during the first day's Laser Radial race and formally withdrew Wednesday, reports Xinhua.
"Doctors said her shoulder injury was severe. She will return to Shanghai to receive a treatment tomorrow," said Liu, adding that Xu might have to miss the entire year.
The 26-year-old won a bronze in Laser Radial at the 2008 Beijing Olympics and a gold at the 2012 Games.
The World Cup Qingdao leg kicked off Monday.