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Anthony Joshua displayed his immense power by smashing the record on a boxing machine whilst on The Graham Norton Show.

The world heavyweight champion taught celebrities Graham Norton, Greg Davies, Martin Freeman and Rachel Weisz how to punch.

The former Olympic champion then stepped up to deliver a huge shot that shattered the existing record of 787 to register a score of 848.

Norton discussed AJ's epic clash at Wembley with Wladimir Klitschko with the Brit pointing towards heart as the reason for triumphing.

"This is the one thing I hadn't trained for. Of all the things I had trained for this is the one thing I hadn't prepared for," Joshua said on the hit BBC chat show.

(Image: PA)

(Image: PA)

(Image: PA) (Image: BBC) (Image: BBC) (Image: BBC)

"You go into fight or flight mode where you say I could stay on my back and say to myself, 'I have given this my all and I am happy with coming this far,' or you get up and fight the extra rounds and go that little bit further.

"When you find yourself in that situation it is about character, so who are you? Take away all the things you have been taught, you have to unteach yourself, and go into yourself and ask who are you and what do you want to represent.

"I'm a fighting man and I got up and started scrapping with him. He came in unbelievable shape, he was knocked down, I was knocked down, we were both tired - it was just about character, it's about spite. You need that bit of spite."