The 17-year-old is currently the 25th ranked woman in the world.
“It has always been a dream of mine to represent the USA at the Olympics, and I hope there will be many more chances for me to make this come true in the future,” Cori tweeted. “I want to wish TEAM USA best of luck and a safe games for every Olympian and the entire Olympic family.”
The United States Tennis Association (USTA) tweeted a statement in response to Cori’s announcement. A USTA spokesperson said they’re currently trying to determine if they can replace her on the roster.
“We were saddened to learn that Coco Gauff has tested positive for COVID-19 and will therefore be unable to participate in the Tokyo 2020 Olympic Games,” USTA’s statement read. “The entire USA Tennis Olympic contingent is heartbroken for Coco. We wish her the best as she deals with this unfortunate situation and hope to see her back on the courts very soon.”
Neither the International Olympic Committee (IOC) nor Team USA are requiring athletes to be vaccinated to participate in the Olympic games.
The whole team is now under quarantine “until cleared to train,” according to the the association said. Monyane and Mahlatsi are the first athletes to have tested positive in the village.
Outside the Olympic Village, a third athlete tested positive on Sunday, organizers said. The names and nationalities of the positive cases were not made known by organizers.
As of Friday, more than 15,000 Olympic individuals had entered Japan, according to Thomas Bach, IOC president. The Olympic Village, containing 21 residential buildings, will house about 11,000 athletes.
The Japanese public, as well as many international observers, have voiced alarm over the Games going forward as Japan struggles to rein in its latest coronavirus outbreak.
The country saw a huge second wave in the spring, peaking in April and May with close to 6,000 new cases per day. Cases began falling in June but have risen in recent weeks, sparking fears the arrival of teams from more than 200 countries could turn the Games into a global superspreader event.
Olympic organizers announced this month that the Tokyo venues will not have spectators due to the city’s coronavirus state of emergency — an unprecedented move, according to an IOC spokesman.
The Olympic Village is prepped with Covid testing and health centers, with signs reminding residents to wear face masks and keep at least one meter (about 3.3 feet) away from each other. Athletes will be contact-traced and tested for Covid daily; if they test positive, they will be taken to an isolation facility outside the Olympic Village, and will not be able to compete.
CNN’s Jessie Yeung contributed to this report.