Watch the trailer for Jelena Dokic’s new documentary in the video player above

The documentary has taken three years to produce, with the official trailer released by movie studio Village Roadshow this week.

The film was written by Ivan O’Mahoney and journalist Jessica Halloran, and features plenty of big names from the tennis world.

In the trailer, Dokic is heard reflecting on her father’s abuse, and breaks down in tears at one stage.

“I’m 16 years old. I’m playing the World No. 1 Martina Hingis,” she said.

“I knew that if I lost, the consequences would be catastrophic.

“One day after I lost, he was extremely angry. I knew what was going to happen.

“There was not an inch of skin that wasn’t bruised.

“I’m 17 and through his actions, (I) became the most hated person.”

Featured is Dokic’s contemporary Lindsay Davenport, the three-time grand slam champion who was the top female tennis player in the world at the turn of the century.

“Some other players had noticed bruising,” said Davenport, who played Dokic several times.

American doubles legend Pam Shriver added: “When you look back and see what she did accomplish, wow.”

Australian journalist Richard Hinds says in the documentary: “From fairly early times, there were rumours about what was happening. Questions were asked, but they hit a brick wall.”

Leading tennis reporter Christopher Clarey added: “Could I have had dug deeper to uncover what was really going on? I think a lot of us could have.”

The reaction to the trailer’s release has been overwhelmingly positive and Dokic has been inundated with support.

Tennis account Christian’s Court wrote on X: “The trailer for Jelena Dokic’s “Unbreakable” is so chilling.”

Lisa Wilkinson commented: “You are extraordinary Jelena. For all the years of pain you’ve experienced, you continue to stand strong and give back with your passion to help others.

“An iron will, and the sweetest of hearts proving a deadly combination. All the love to you.”

Former Aussie swimmer Hayley Lewis said: “Just inspirational and heartbreaking.”

Comedian Adam Hills commented: “This. Looks. Incredible.”

Dokic, now one of Australia’s leading tennis commentators and a fierce advocate for mental health, has been very open about her battles with body image, hitting back at social media trolls who have criticised her weight.

Earlier this year the 41-year-old revealed she had lost 20kg as part of a bid to look after her health.

The former tennis star said between turning 40 and her own creeping health issues, she started to really think about her family history of diabetes, high blood pressure and heart problems.

“This is about health and not size. So many questions about me getting healthier, which has seen me lose weight,” she said.

“Weight loss was not a priority. It’s just a by-product of looking after my health.”

Dokic said over 10 months she lost 20kg, saying it was small changes over time that helped her sustain her health goals.

“I stopped eating late at night especially things like burgers, pizza, fries and desserts because they made me feel so sluggish when I would wake up especially for early morning work and flights,” she said.

“So I don’t eat heavy meals at night anymore and I don’t eat after 7pm.”

“It’s small changes over time and while I still have my cheeseburger and fries days it’s just a lot less and I definitely don’t eat junk food when I am working and travelling,” she said.

“Just consistency and small changes overtime. I have also exercised more. Little changes for a healthier lifestyle.

“Remember it’s not one size fits all and do what is best for you. Everyone is different.”