“I think I’m clear right now because in Miami I did the vaccine, Johnson & Johnson,” the 23-year-old told reporters on Tuesday.
“Hopefully, I’m safe because I don’t want to stay in quarantine any more. It’s not a lot of fun.”
Sabalenka said she could not move for four days after testing positive last month.
“I stayed in the room for 10 days. I was doing some workout there, but it wasn’t enough,” she said. “I didn’t have taste, I didn’t have smell. Wasn’t really an amazing time.”
Sabalenka is the top seed at the WTA Finals after world number one Ash Barty decided not to travel to Mexico. She will face Spain’s Paula Badosa in her first match on Thursday.
The WTA Finals, contested by the world’s top eight singles players and eight doubles teams, was relocated to Mexico from Shenzhen due to Covid-19 travel restrictions in China.