Ariarne Titmus has criticised a sports betting advertisement.

The ad included actress Sydney Sweeney.

Titmus argued it sexualised women's sport.

The advertisement sparked criticism.

Other elite athletes joined the criticism.

The ad came from a sports prediction company.

As a separate matter, Titmus announced her engagement.

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 formed part of a public backlash.

Athletes from various disciplines also weighed in.