China’s Xu Lijia celebrates winning gold in the Laser Radial sailing class on August 6 (WILLIAM WEST/AFP/GettyImages)

China's Xu Lijia celebrates winning gold in the Laser Radial sailing class on August 6 (WILLIAM WEST/AFP/GettyImages)

China’s Xu Lijia celebrates winning gold in the Laser Radial sailing class at the London 2012 Olympic Games, in Weymouth on August 6, 2012. (WILLIAM WEST/AFP/GettyImages)