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Caster was born with differences of sexual development (DSD) which mean she has an elevated level of testosterone - a hormone that increases muscle mass and strength.

The South African cannot compete in female track events without taking testosterone-reducing drugs under regulations introduced in 2018.

Caster was asked about the time she told her parents at a young age that she wanted to marry a woman.

"It was not a joke because they knew that everything that comes out of my mouth - it's serious, it's something that means a lot to me.

"When I told them that they were like 'we can see the kind of a life you're living but at the end of the day if that's what makes you happy".

This clip was originally from Nihal Arthanayake on 9 November 2023.

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