The Real Madrid star now misses the Champions League qualifier against Manchester City on Tuesday, she writes on Instagram.
"I am very disappointed to have to announce that I tested positive for covid (fully vaccinated) and will miss the historic Champions League match on Tuesday.
I was really looking forward to this match and can not explain in words how sorry I am to miss it ".
Kosovar Asllani was one of Sweden's prominent players when the silver was salvaged at this summer's Olympic Games.
The midfield genius has played for Real Madrid since 2019.