US Open spokesman Chris Widmaier told CNN earlier this week that the player could not be named due to health laws, but had been identified as Frenchman Benoit Paire by the respected French sports daily L'Equipe.
He has since been identified by other players and on social media and Paire was officially replaced in the draw before the tournament began. An email sent to his agent on Monday was not returned.
A bubble was set up at the Grand Slam due to the coronavirus pandemic, with players commuting between tournament grounds and two tournament hotels on Long Island. All but a few stay at these hotels, with Novak Djokovic and Serena Williams opting for private accommodation.
"Public health officials in Nassau County, New York, have issued quarantine notices for anyone who has had prolonged close contact with someone who had previously tested positive for the COVID coronavirus. -19, "a US Open statement emailed to CNN on Saturday. "As players remain in Nassau County, quarantine notices prevent these people from coming to the USTA Billie Jean King National Tennis Center in New York.
"The USTA is obligated to adhere to government guidelines at state, city and county levels. Anyone identified as having prolonged close contact with the infected player will be quarantined in their rooms for the remainder. of their quarantine period.
"Kristina Mladenovic is one of those people, and as the women's doubles competition began, Kristina Mladenovic and Timea Babos' women's doubles team were pulled from the US Open."
Late Friday
Mladenovic's withdrawal came after compatriot Adrian Mannarino was finally cleared for his singles match on Friday. He said he had also been placed in the enhanced protocol plan.
When asked why Mannarino was allowed to play but Mladenovic not, Widmaier said in an email to CNN it was because "the quarantine notices were served last night."
Mladenovic and Babos were to face Alison Riske and Gabriela Dabrowski in the first round. They made the doubles final at the US Open in 2018.