Wang was taken to the Shanghai Huashan Hospital and doctors said she needs surgery.
"She clashed with a teammate when she made a turn during the team's intensive training," said Zhao.
Wang is a favourite in the women's 500 metres which she won in 2006 and 2010 Games. She also claimed the 1,000m and 3000m relay titles in 2010.
The women's 500m starts Feb 10 when the semi-finals of 3,000m relay also take place.