"My name is Tyson Luke Fury and I am a flawed character." So begins a mesmerising 45 minutes worth of dissecting the path of the world's most naturally gifted heavyweight from the depths of despair and back to the top of the world. With his rematch against Deontay Wilder just days away, last night ITV ran a new documentary, 'Tyson Fury: The Gypsy King', in which he gave unprecedented access to his life at home as well as his training camps. Just as many Fury fans will have found in his autobiography, Behind the Mask, which was released last year, he is honest to a fault about his struggles outside of the ring. They would be difficult to hide in the glare of the public eye, but the way the 31-year-old confronts them so publicly never fails to inspire. 

"I suffer with mental health problems, depression, anxiety, bipolar disorder and I've achieved great things...and I am also the best heavyweight in the world," he summarises early on. 

As his family relate, there are constantly two sides to Fury on show; one moment running around Wladimir Klitschko's press conference dressed as Batman, the next detailing the moment he considered taking his own life in a Ferrari. 

"He got in the Ferrari before he left he said: 'I'm not coming back'," his wife Paris recalls. 

"Then as the day progressed and his phone was off I started calling his dad.

"I said, 'Have you heard from him because I don't know where he's at? I am worried, he was talking silly this morning.'"

Fury's lowest nadir came after the pinnacle of his career against Klitschko, but he now looks back on that time as the cumulation of years of mental health problems.

"I always put it to the back of my mind because I had a job to do," he said.

"My job was becoming heavyweight champion of the world. 

"So you put all your eggs in one basket, you're an addictive personality. It's all or nothing, everything you do. You've achieved your dreams from being a kid.

"There's nothing else to go for, there's no further I can go in my career. That was the Everest. Then that's it. Crashing down."

During his hiatus, when he ballooned up to 28 stone, Ricky Hatton describes him as "a heart attack waiting to happen". 

Fury was then diagnosed with bipolar disorder in 2016 as he continued to spiral out of control. That has, nevertheless, been a key factor in honing a new perspective on life: 

"We’re made to believe success is happiness. It’s very untrue."

The story the world has seen - and in many ways, shared - since has seen him catapulted back into boxing folklore, years after being vilified in sections of the media, something he puts down partly to discrimination against him because of his Travellers background. 

However familiar his narrative becomes, footage of his ascension from the canvas against Wilder never ceases to amaze. 

From being given no chance against the Bronze Bomber, to many feeling he had been robbed of one of the greatest comebacks in sporting history. 

More so than with perhaps any fighter, to understand Tyson Fury the boxer, you have to take full stock of Tyson Fury the man. 

"Against Wilder, he looked like he was finished. Just like in life. People wrote him off in life."