An Se-young's Only Weakness

That she isn't indestructible
In reality, badminton involves so much physical exertion and rapid changes in direction that it is hard on the knees and ankles.
Since An Se-young reaches the finals in almost every tournament, her total number of matches played is overwhelmingly high,
so injury issues are bound to increase moving forward.
If she plays for just two more years, she will be indisputably confirmed as the GOAT,
so there doesn't seem to be a reason to keep playing long-term while carrying injuries.
I suspect she might consider retirement after winning two consecutive Olympic gold medals.