Anthony Joshua has given a fascinating insight into his training regime after offering an explanation for a bizarre stretch that saw the former world heavyweight champion climb onto another athlete.

Joshua is attempting to continue his career resurrection after two previous defeats against Oleksandr Usyk by taking on Daniel Dubois in an all-British heavyweight clash at Wembley on Saturday evening.

The huge heavyweight clash has sold out with 96,000 spectators expected to be in attendance, with Joshua favourite to come through the bout victorious.

AJ is attempting to become a three-time world champion with the IBF heavyweight title up for grabs after it was vacated by Usyk, while Dubois is yet to lift a world title.

Both fighters have been attempting to unnerve each other heading into the mouth-watering contest, AJ staring out his opponent during a pre-fight press conference and Dubois almost coming to blows with Joshua months earlier.

Anthony Joshua has given a fascinating insight into his training regime ahead of his contest

Joshua is attempting to become a three-time world champion when he takes on Daniel Dubois (right) at Wembley

Training camps are now complete and Joshua has explained the benefits of a strange stretch that has since gone viral.

Footage shows the 34-year-old climbing onto the back of another man, interlocking arms with his feet and being pushed up to the ceiling in a pose that appears to be incredibly uncomfortable.

But, Joshua has claimed that it gave him amazing benefits as he attempts to find an edge over Dubois with a world title belt on the line.

Speaking on Sky Sports, Joshua said: ‘I was in Texas here training and this guy is like a gymnast and he helps a lot of NFL players.

Joshua has offered a bizarre explanation for his bizarre stretching routine that he practiced in America

‘This stretch is mad. It feels good though, it feels good. But it’s a really good stretch.

‘Flexibility is important for recovery and it’s something unusual but it works,’ he added.

Meanwhile, both boxers are set to weigh in on Friday evening as fans are given a first look at who will be the heavier fighter going into the blockbuster contest.

Dubois could be expected to tip the scales as he looks to try and find an advantage, while Joshua has previously weighed in lighter under current coach Ben Davison.