Deontay Wilder has accused heavyweight rival Anthony Joshua of being a 'coward' and buying his first world title.

The WBC champion, who defends his belt against Bermane Stiverne on November 4, has continued his war of words with the Brit and again reiterated his desire to unify the division by beating Joshua next year.

And in a chilling warning to the rest of the rest of the world's top heavyweights, Wilder says he wants to hurt his opponents 'to the point where you don't even have a life to live'.

Deontay Wilder has called out Anthony Joshua and accused the Brit of being a 'coward'

Joshua celebrates after defeating Wladimir Klitschko at Wembley Stadium in April this year

Asked whether he was the first one to call out Joshua in an interview with fighthype.com, Wilder said: 'Most definitely. I'm the first to call out everybody. If you put me in the category of calling out and talking s***, then I'm the man to beat.

'I'm that one, I've called them all out. Of course I've called Joshua out, he knows what I want. They know what I want. (Eddie) Hearn knows what I want. The UK fans know what I want and I want him.

'He don't say he's the best, he don't even know if he's the best or not but he's a champion.

'They bought that first belt from Charles Martin for sure. He wasn't even ready to step up to the plate but now you've filled the spot, you can't be talking about not being ready. You can't say that.

Wilder is preparing to face Bermane Stiverne (left), who he beat in Las Vegas back in 2015

Wilder shows off his power in a video posted to his Instagram account on Wednesday

'You're a champion, I'm a champion. The people say you the best, they speak for you. You're a coward, you can't speak for yourself. I speak for myself and I say I'm the best. So let's see who's the best.'

Joshua defends his IBF, WBA and IBO heavyweight titles against Kubrat Pulev in Cardiff on October 28, meaning a fight with Wilder will not take place until 2018.

Providing he beats Stiverne for a second time when they meet in Brooklyn next month, Wilder may be forced to put his WBC belt on the line again before finally getting a shot at Joshua.

But the Bronze Bomber, who claims he is 'on some life, death threatening s***' when he gets in the ring, believes his performances have put 'fear' into the rest of the heavyweight division.

'They were already terrified of me and when I say 'they', I mean all the top guys in the heavyweight division,' he added.

Joshua poses with Manchester United's Marcus Rashford as he prepares to face Kubrat Pulev

Wilder's last fight was a knockout victory over Gerald Washington in Alabama in February

'I'm not saying they're all scared of me, I know some of them want to fight me and really feel they can beat me but I do put fear in these fighters' hearts and they should have fear because I'm coming in to try and really hurt you to the point where you don't even have a life to live.

'I'm on some life, death threatening s***, try to take your life type s***. That's what I'm on when I get in that ring because the Bronze Bomber takes over. When I'm outside, I'm Deontay.

'That being said, these guys know that when I talk I'm for real, I'm serious. They know when my presence is in the room, you can feel it. That energy vibe starts to come.

'I don't play around man, this is what I want - I'm ready to unify the divsion. I'm a fighter so my mentality has to be that way when it comes to this game. This ain't even a game because you can't play when it comes to this business.

'I've got to be a savage in the mind but still be a gentleman at heart when it's over with.'