“I know what I bring to the table,” he says in the documentary. “I know that I sell a lot of tickets. I sell out stadiums all around the world. But I know I’m not really accepted. Especially in the tennis world — being a white,privileged sport.

“When I was young,I was told you could only make it if you ticked these certain boxes. Being bullied at a young age because of being short and fat and brown,it scarred me,for sure. People confuse my confidence for arrogance at times because they have no idea what I’ve gone through.”

Kyrgios has also battled with regular injuries,and withdrew from this year’s Australian Open to have surgery on his knee. On Wednesday he returned to action after a seven-month recovery to play in Stuttgart,defeated by China’s Wu Yibing in straight sets,in a match lasting 68 minutes during which he visibly struggled with pain and mobility.

Crisis support can be found atLifeline (13 11 14),theSuicide Call Back Service (1300 659 467) andbeyondblue (1300 22 4636).

Watch all the action fromWimbledon with every match streaming ad-free,live and on demand from July 3 on the Home of Grand Slam Tennis,Stan Sport.