The Naomi Osaka fiasco is a sign that we're nowhere near finished with work on mental health

It's the modern day equivalent of the Roman Empire's gladiatorial shows. After playing for several hours, often in hot and humid conditions, with their emotional reserves ebbing and stress levels sky rocketing, tennis stars enter the media's ice cold inner sanctum -- the post-match press conference.

And Naomi Osaka has had enough. She has faced down countless opponents on her stratospheric rise to the top of tennis, but this week the world's No. 2 put down her racket and walked away from the probing and prodding of the press. Osaka's decision to withdraw from the French Open, rather than participate in media conferences at Roland Garros, has sparked a wider debate about the culture of post-match briefings and their impact on athletes' mental health.