Bianca Andreescu, the 2019 US Open champion, will miss the rest of the 2020 season to focus on her "health and training."
The 20-year-old had already withdrawn from the French Open before announcing her decision to opt out of the remainder of 2020 on Tuesday. She pulled out of this year's US Open due to continued knee issues
"I have come to the difficult decision to skip the clay court swing this year and will be taking the remainder of the season off to focus on my health and training," Andreescu tweeted.
"As hard as it was to come to this conclusion, I have so much to look forward to in 2021, including the Olympics; I want to use this time to focus on my game so I can come back stronger and better than ever," she added.
Andreescu, who's ranked No. 7 in the world, defeated Serena Williams in last year's US Open final, becoming Canada's first-ever Grand Slam champion. She hasn't competed in a WTA tour event since last October at the WTA Finals in China, meaning Andreescu will now go over a year without competitive action.
She continued: "As always, your encouraging words and support meant the world to me and I look forward to getting back on the court and competing for Canada next year!"