Ariarne Titmus criticised a sports betting advertisement.
The ad featured actress Sydney Sweeney.
Titmus argued it sexualised women's sport.
The advertisement provoked a backlash.
Other elite athletes added their voices.
The ad was for a sports prediction company.
In separate news, Titmus shared her engagement news.
Her fiancé is Mac Powell.
She wrote the word 'Forever' on social media.
The engagement news had nothing to do with the ad.
Titmus's comments contributed to a public backlash.
Athletes across different sports added their voices.