Biles' Tokyo struggles could inspire wider change around mental health

Biles says she wasn't in right 'headspace' to compete and withdrew from gymnastics team final to protect herself. Photo: AP Photo/Ashley Landis

First it was Naomi Osaka, now weeks later a tearful Simone Biles. Two of the biggest names in sport have publicly revealed that they are struggling with their mental health -- and they could be the catalyst for wider change.

The superstar American gymnast Biles on Tuesday stunned the Tokyo Olympics when she pulled out of the women's team final, saying: "I have to do what's right for me and focus on my mental health and not jeopardise my health and my well-being."