Ariarne Titmus spoke out against a sports betting advertisement.
The ad featured actress Sydney Sweeney.
Titmus claimed it sexualised women's sport.
The advertisement provoked a backlash.
Other elite athletes added their voices.
The ad was for a sports prediction company.
As a separate matter, Titmus revealed she is engaged.
Her fiancé has been named as Mac Powell.
She posted the word 'Forever' on social media.
The engagement news was unrelated to the ad.
Titmus's comments contributed to a public backlash.
Athletes from various disciplines added their voices.