Anthony Joshua makes feelings clear on boxing retirement ahead of blockbuster Francis Ngannou fight

He will face Ngannou looking to continue his excellent form, having overcome the likes of Jermaine Franklin Jr, Robert Helenius and Otto Wallin last year.

Joshua has started to look more and more like the figure of old, with many expecting the Briton to win his showdown with Ngannou next month.

Ngannou certainly won't be straightforward given how well he performed during his narrow defeat to Tyson Fury back in October.

And Joshua, per Sky Sports, has suggested he won't be quitting boxing anytime soon with the 34-year-old eager to continue his 'quest for greatness'.

"On this quest for greatness how far can I push myself?" he said.

"How much can my brain keep on going until it gives up and I'm like: I can't do it anymore?

"I want to keep on pushing my brain and trying new things. Get quicker, stronger, smarter in the ring. Face challenges, because I learn so much about myself.

"And then when it's enough, enough is enough."

While Joshua is preparing to face Ngannou, fans would likely prefer to see the Watford-born star sign up for two other bouts instead.

For years, now, speculation has rumbled on about possible fights against Deontay Wilder and Tyson Fury.

Joshua had penned a deal to fight Wilder this year.

After the Bronze Bomber lost to Joseph Parker in December, however, their plans were scuppered.

And Joshua believes it is 'annoying' that his fight with Wilder couldn't happen because the two men finally had everything ready to go.

He added: "[It was] annoying in a way because in fight week we met up, we spoke to lawyers, we signed contracts, all that good stuff.

"It's a fight that fans want to see. I'm not saying it's completely written off.

"It's a fight where everything was signed and sealed. It just needed both of us to deliver.

"And he didn't meet his end of the bargain."

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Joshua also insists he has previously signed on to fight Fury, too, though that possible showdown remains in limbo.

"You know what it proved to me, I've signed to fight Fury, I've signed to fight Wilder, I've signed to fight a lot of people," he continued.

"I just do good business. I'm a good prizefighter, I don't duck a challenge.

"I'm always up for it. I just feel to myself I'll always be here and ready to fight any time."

While Joshua has been boxing his whole life, Ngannou is relatively new to the sport.

The 37-year-old has just one career fight to his name, which was against Fury four months ago.

And Joshua is adamant he's right to be facing Ngannou, despite his rival's lack of experience.

"He had a good outing as well against Tyson Fury who is the current WBC champion. So I think it will be good for me to see where I'm at," he said.