Anthony Joshua's life story has been told in brutally honest detail in a short film released ahead of his huge Wladimir Klitschko heavyweight title fight.

The Watford-born fighter is set for the toughest test of his career on Saturday when he comes up against the former world heavyweight champion.

AJ will face Klitschko at Wembley stadium in front of a sell-out 90,000 crowd with the IBF, WBA and IBO titles all on the line.

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Anthony Joshua, alongside his mum Yeta, stars in a new 90-second film charting his rise

But it hasn't always been plain sailing for the 27-year-old - as the video, made by Lucozade Sport, shows.

The advert follows Joshua from his birth in 1989 to his knockout against fierce rival Dillian Whyte in 2015.

Lucozade track Joshua growing up, showing him delving into other sports such as running and football.

And the advert highlights key events throughout the heavyweight figher's life such as his arrest in 2009.

The short film ends with Joshua in his mother's living room and the motto "Nobody ever moved standing still" emblazoned across the screen.

The film will be aired shortly before the fight on Saturday.

Speaking about the advert, Joshua said: "I'm not usually one to look back but I liked the concept for the short film.

"It has been a real journey from growing up in Watford to fighting at Wembley Stadium.

"Everything in between; all the things I have done and all the people that have supported me, have made me who I am and this film illustrates that.

"I am excited to share my journey with my fans and I hope that it inspires the hunger in others."