Peng Shuai reached the last eight of the Australian Open and the semi-finals of the French Open last year
Peng Shuai lost an appeal to get a temporary visa for May in the United States, according to a BBC Sport reporter.
The Chinese player tweeted that her request had been denied at the Washington Dulles Airport.
And a website that specialises in coverage of the sport has also posted a video of the 27-year-old apparently at a restaurant in Virginia, which it identified as Giant Tiger in Alexandria.
Ex-World Number Three Peng was set to take on Aleksandra Krunic on Friday in the second round of the San Jose Open.
A spokesman for the US Department of Homeland Security told BBC Sport that immigration applications for people under the age of 18 will not be approved if they are asked about their parents’ status in the country.
If an application is denied, a notification will be posted on the applicant’s passport.
The player can, however, apply for a visa again after the tournament is over.