“I think I’m clear now because in Miami I gave the vaccine, Johnson & Johnson,” the 23-year-old told reporters on Tuesday.
“Hopefully I’m safe, because I don’t want to be in quarantine anymore. It’s not fun.”
Sabalenka said she was unable to move for four days after testing positive last month.
“I stayed in the room for 10 days. I was training there, but it wasn’t enough,” she said. “I had no taste, I had no smell. It wasn’t really a great time.”
Sabalenka is the top seed in the WTA Finals after world number one Ash Barty decided not to travel to Mexico. She will take on the Spanish Paula Badosa in her first game on Thursday.
The WTA Finals, where the top eight singles and eight doubles teams in the world compete, was moved from Shenzhen to Mexico due to Covid-19 travel restrictions in China.