Former boss' staggering call amid Michael Schumacher health mystery

Michael Schumacher's close friend and former boss at Ferrari has predicted the F1 legend will "slowly and surely improve" after visiting him regularly over the past 12 months.

Mystery still surrounds Schumacher's condition after he suffered devastating head injuries in a skiing accident in the Swiss Alps in 2013.

'NEVER SEEN THIS': Fans erupt over 'insane' scenes at Dutch GP

'THIS IS IT': F1 fans saddened as legend announces retirement

The former Ferrari driver's family has remained highly secretive about his health in the years since, with updates on Schumacher's condition extremely rare.

However one man who has been providing snippets of information to the public is Jean Todt, Schumacher's former boss at Ferrari and the current head of the FIA.

Todt has been visiting his close friend regularly over the past 12 months and providing fans with a unique insight into the stricken legend's condition.

Todt recently sent fans into a frenzy by saying he believes Schumacher will "slowly and surely improve" over time.

He also spoke out about how Schumacher's wife Corinna has been a rock during the tragic time.

“I've spent a lot of time with Corinna since Michael had his serious skiing accident... She is a great woman and runs the family," he said.

“She hadn't expected that. It happened suddenly and she had no choice. But she does it very well. I trust her, she trusts me.

“Thanks to the work of his doctors and the cooperation of Corinna, who wanted him to survive, he survived - but with consequences.”

Schumacher won five consecutive World Drivers’ Championships under Todt’s leadership from 2000 to 2004.

Late last year Todt revealed that Schumacher is “still fighting”.

“Michael is in the best hands and is well looked after in his house. He does not give up and keeps fighting," he said.

“His family is fighting just as much and of course our friendship cannot be the same as it once was just because there’s no longer the same communication as before."

Wife offers rare insight into Michael Schumacher's condition

In the first trailer for a new Netflix documentary about Schumacher's life, Corinna recently provided some new insight into the sad saga.

Speaking in the trailer, Corrina says she can still feel her husband's strength.

"I just felt that he is somebody special," she says.

"I think that he is simply very strong mentally. Extremely strong. He still shows me how strong he is every day."

Vanessa Nocker, director of the doco, said: "The greatest challenge for the directors was certainly to find the balance between independent reporting and consideration for the family.

"Corinna Schumacher herself was our greatest support in this.

"She herself wanted to make an authentic film, to show Michael as he is, with all his ups and downs, without any sugar-coating.

"She was great and brave enough to let us do what we wanted, and so we respected and kept her boundaries.

"A very inspiring, warm woman who made a lasting impression on all of us."

Click here to sign up to our newsletter for all the latest and breaking stories from Australia and around the world.