WBA and IBF world heavyweight champion Anthony Joshua said he will fight "like a challenger" as he weighed in heavier than ever ahead of facing Carlos Takam in Cardiff on Saturday.

The Principality Stadium will host the biggest-ever crowd for an indoor boxing show, with over 70,000 fans expected at what organisers say is the fastest-selling event in the stadium's history.

Joshua tipped the scales at 18st 2lbs at the weigh-in on Friday - the heaviest he has ever been for a fight - with Takam at 16st 11bs.

The Briton says he is hungrier for this bout than when he stopped Wladimir Klitschko at Wembley in April, despite the fact that Cameroon-born 36-year-old Takam replaced the injured Kubrat Pulev just 12 days before the bout.

"I know what it's like to be a challenger," said Joshua, 28. "Believe it or not I still have the mindset of a challenger. I don't walk around with an ego just because I have a few belts on my shoulder.

"I know he has that mindset to find a way to win. If you keep on knocking on the door you find a way through. I just have to boot him out because he isn't coming through this door.

"I'm still developing. I think that's why people jump at the opportunity. If I trashed talked more I may be more feared. But my job is to break them down in the ring, strip them of confidence, strip them of desire and strip them of winning."