Ariarne Titmus spoke out against a sports betting advertisement.

The ad included actress Sydney Sweeney.

Titmus said it sexualised women's sport.

The advertisement drew criticism.

Other elite athletes also spoke out.

The ad promoted a sports prediction company.

In separate news, Titmus announced her engagement.

Her fiancé is Mac Powell.

She posted the word 'Forever' on social media.

The engagement news had nothing to do with the ad.

Titmus's comments were part of a public backlash.

Athletes from different sports also weighed in.