Anthony Joshua has revealed a desire to display a new dimension and prove his mobility when he fights Dominic Breazeale on Saturday.

American and fellow 2012 Olympian Breazeale is Joshua's first challenger in his reign as the IBF heavyweight champion. For all of his devastating power - he has convincingly stopped each of his 16 professional opponents - Joshua still remains unproven at world level and is yet to show a variety of skills.

The 26-year-old insists he is capable of the finest footwork, however, and that only a lack of confidence and a fear of risking defeat has prevented him from proving it before this weekend.

"I'd love to go in there and just move around the ring and not get hit without throwing any punches," said Joshua of the fight at London's O2 Arena.

"We've shown the power but we've never shown footwork. If not, I might go in there with the instinct to outbox him but land a shot that will punish him.

"It depends on how I approach the fight. You saw how I approached the Charles Martin and Dillian Whyte fights.

"I practise things in sparring because there's no pressure, but in the ring I just wait for that one chance to punish someone. I don't really display anything special except for punch power.

"If they ever get hurt, if I don't get them out that could be me in six or seven rounds. It's time to get them out. The tables can always turn in a 12-round fight. If I do see an opportunity, I have to take it.

"Someone bigger will have me having to slip. You do have to do a bit of moving, rolling, inside work. Hopefully I can display that. It's all about confidence and mindset. I'm at that stage now where I should be confident enough to control a fight. (But) I'm at a five (out of 10 in my confidence). You've got to be confident but it's that fear of losing.

"In sparring I can dance and try things. I need to get to a stage where I'm that comfortable in controlling a fight that I can do those things. That's when you'll see the greatest from myself."

It was in the Whyte fight, before defeating Martin for his IBF title, that Joshua showed limitations that could later undermine him.

Amid his unquestionable promise he remains relatively raw, but he is determined to evolve instead of becoming the one-dimensional fighter so many with his power would.

"Once you get the full package, you're unstoppable," Joshua said. "No matter what happens, you're just built for this. You condition yourself - you harden yourself to become the best person.

"I need to start now. I need to get to that stage now and start controlling fights. I'm talking about progressing now. From 16 fights on, I want to progress.

"It's just a matter of time and it just so happens it's starting now. It's been a natural thing. I've no control over the decision (to develop), it's just come upon me and has been stuck in my head. I need to start building on it.

"Whether it's right or wrong, I'll find out when I get in the ring."