Olivia Dunne was expected to compete in the 2021 Olympics.
She withdrew from the competition just before the start of the games.
The reason for her withdrawal was not immediately clear.
Later, it was revealed that she had suffered from mental health issues.
She had been struggling with anxiety and depression.
Dunne's decision to withdraw was supported by her team and fans.
She has since been focusing on her mental health and well-being.