Ariarne Titmus has criticised 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 came from a sports prediction company.

Separately, Titmus shared her engagement news.

Her fiancé is Mac Powell.

She posted the word 'Forever' on social media.

The engagement news bore no relation to the ad.

Titmus's comments contributed to a public backlash.

Athletes across different sports joined in.