Ariarne Titmus criticised a sports betting advertisement.

The ad starred actress Sydney Sweeney.

Titmus claimed it sexualised women's sport.

The advertisement provoked a backlash.

Other elite athletes joined the criticism.

The ad was for a sports prediction company.

As a separate matter, Titmus announced her engagement.

Her fiancé is Mac Powell.

She posted the word 'Forever' on social media.

The engagement news was unrelated to the ad.

Titmus's comments formed part of a public backlash.

Athletes across different sports also weighed in.