Pif race

As a WTA 500 event, the main draw of the Ningbo Tennis Open began on October 14, attracting several top-ranked players.

"I deeply regret having to withdraw from the Ningbo tournament. After competing in the China Open and the Wuhan Open, I have sustained some injuries and have also caught a cold. I hope to return and compete in Ningbo next year. I sincerely apologise for my withdrawal," said Paris Olympic champion Zheng in a statement, as quoted by Xinhua.