The 32-year-old has been training in Dubai in preparation for his re-match with Oleksandr Usyk. The date for the fight is "early spring", but has yet to be officially announced after Joshua's team triggered the rematch clause in October.
Since the unanimous points defeat to Usyk in September, Joshua has been seen training with a number of different coaches. He left his Sheffield base last month and has been training with a variety of coaches across America - including Virgil Hunter, Eddy Reynoso and Ronnie Shields.
AJ has not confirmed his split with long-time trainer and mentor Rob McCracken. But the heavyweight's decision to leave his base at the English Institute for Sport in Sheffield suggests their time together could well be up.
In recent weeks Joshua has been getting some warm-weather work in the UAE, with Anthony 'Chill' Wilson. A number of British fighters are currently working in Dubai, including Chris Eubank Jr and Lawrence Okolie.
However, the most interesting spectator during Joshua's pad work was Mayweather. He was seen sitting offering the Brit advice as he pummelled the aqua bag.
Joshua later posted a picture of himself with the unbeaten Mayweather (50-0).
AJ captioned it: "The best to do it and always helping the next generation. Big respect champ."
But while Joshua was taking on board advice from 'Money' Mayweather, Atlas was suggesting AJ had made too much cash too quickly.
AJ 'accepts defeat too easily'
The American boxing analyst thinks Joshua has become "too gracious" in defeat.
"Joshua, he's made too much money," Atlas said on his podcast The Fight. "I do [think that]. He accepts defeat too easily, too graciously - I want a good winner and a good loser, don't get me wrong.
"I believe as much as anybody, if not more than most people, about that, about showing that kind of graciousness whether you win or lose, but he's too gracious when it comes to it. Like a guy that made too much money."
Joshua has been beaten twice by Andy Ruiz and Usyk in his eight-year pro career.
Joshua did bounce back six months later in December 2019 to outpoint Ruiz to win back the IBF, WBA and WBO titles. And he is aiming to repeat that feat when he tussles with the unbeaten Usyk later in 2022.
Joshua said: "I've learned my lesson." And claimed his "spirit is strong" despite the convincing 12-round defeat to the Ukranian.
"The learning is done, it's war, straight war. I'm boiling up inside even speaking about it. [Usyk] has had like 400 amateur fights, he's seen people that have tried to rough him up, millions of times, so to just try and adapt to one [game plan] is silly," Atlas added.
"But for me I have one thing in my mind; that's war, that's murder, that's war. That's go out there and hurt the guy, and take his soul to the point where he wants to give up."