Anthony Joshua is the golden boy of British boxing right now and he further enhanced his status as arguably the country’s biggest sporting star with his victory over Joseph Parker last weekend.

The 28-year-old recorded the 21st victory of his career at the Principality Stadium in Cardiff - although he was forced to go the full 12 rounds for the very first time.

Joshua failed to secure his 21st knockout against the New Zealander in what unfortunately proved to be a very disappointing spectacle. However, the Watford-born boxer ultimately did what he needed to do.

Speculation is rife that Joshua will face Deontay Wilder in his next professional bout, although nothing has been agreed as yet.

Joshua’s promoter Eddie Hearn confirmed earlier this week that he’s “very confident” the Wilder fight will be agreed after starting talks with the American’s team.

Wilder, meanwhile, is keen to go head-to-head against the Brit - even if it means fighting in Britain.

"I accept that challenge and I am ready to come to the UK for my next fight,” he said. “There is nothing on Team Wilder's side to prevent me from fighting you next."

Frank Warren gives his honest opinion about Joshua's career

However, Frank Warren has come out today and made some very interesting comments about Joshua, claiming his career is not turning out as expected.

On the fight against Parker, Warren told Boxing News: “I thought it was a dull fight.

"He showed a lot of vulnerabilities and after a great start, his career is not turning out as expected. Look at what Hughie Fury did to Parker. Parker is not a great fighter.

“The referee [Giuseppe Quartarone] was crap, he kept breaking them up. But Joshua ran out of ideas and it showed that when he gets pushed back, he gets flustered.”

Warren: Joshua must beat Fury to be the true champion

He continued: “Until anyone beats [Tyson] Fury they cannot rightfully call themselves the world heavyweight champion because he didn’t lose his titles in the ring.

“What we have seen with Joshua in three fights now, against Dillian Whyte, against Klitschko and Carlos Takam last year, is that Joshua can be caught easily. In three fights he’s either been down or wobbled.

“Walking forward, Joshua is terrific, but no work is being done on his defence. Look, give him credit for the Klitschko win, he showed he had heart to get up off the floor but he’s vulnerable and very beatable. That’s what I look for, not just a fighter’s strengths, but their weaknesses and how they can be beaten.”

Is Warren right about Joshua?

Warren’s comments will certainly raise plenty of eyebrows but a lot of what he says is very hard to disagree with.

“I don’t think he’s going to get any better, and there’s no point holding him back,” Warren added. “You can say he’s only had 21 fights but he’s got stacks of experience. He was unlucky not to get the decision in the World Amateur Championships in 2011 [versus Roberto Cammerelle], then he won the Olympic gold, and he’s fought at the top level as professional. He should now be fighting everyone.

“I’d make the Wilder fight next [if I was his promoter].”

And to make it patently clear that he doesn’t buy the Joshua hype, Warren concluded by saying the following...

“Frank Bruno would have beaten Joshua every day, Joe Bugner would probably have beaten him and he’d have absolutely no chance against Lennox Lewis.”

Has Frank Warren spoken the truth about Anthony Joshua - or is he talking rubbish? Have your say by leaving a comment below.