World 800m champion Caster Semenya, whose gender is under scrutiny, has always been a woman, says her dad.

Valerie Vili has an eye on more glory after winning a second successive women's shot put title at the athletics world championships today.

Valerie Vili's global domination of women's shot put continued at the athletics world championships in Berlin this morning.

Following controversy over new record-breaking swimsuits, we look at 10 other examples of technology changing the shape of a sport.