IBF, WBA, IBO, WBO heavyweight world champion Anthony Joshua (21-0, 20 KOs) is expecting the unification showdown with WBC champion Deontay Wilder (40-0, 39 KOs) to happen at some point.

There were negotiations to have that contest take place in the fall, but the two sides were unable to agree on the money.

Now Joshua will defend his belts against WBA mandatory challenger Alexander Povetkin on September 22nd at Wembley in London.

There is already a date for Joshua's next fight - April 13, also at Wembley.

If Joshua defeats Povetkin, then Wilder is going to be the target for April.

Joshua's promoter, Eddie Hearn of Matchroom, is already offering $15 million to Wilder for a 2019 mega-bout - but Wilder is not satisfied with the current terms being presented.

"I'm ready, I'm focused, I'm confident that I'll get there [to a Wilder fight], and I'm confident that I'll win once I do get there. So let's talk about it until the cows come home because that fight is definitely going to happen," Joshua told Sky Sports.

"We all hear the ins and outs. Ultimately I am interested in who I'm fighting, and when I'm fighting. It's a simple business. They provide good, worthy opponents for me, and Povetkin is one of them.

"Povetkin - everybody knows who he is. If you're a boxing fan you know he's an Olympic gold medallist, a world title challenger, one defeat. A real interesting competitor. And everybody knows where this is heading, providing I win. Providing I am victorious, we're onto the big time."

According to Hearn, there has still been no movement with respect to a Wilder agreement.

Hearn, at least for the moment, is not prepared to raise the monetary offer of $15 million.

"We haven't made any progress. They still have the contract. They can sign the contract and it's done for April 13. But we will be in control of our destiny. I don't know what he's doing," Hearn said.

"Make no mistake Povetkin is a dangerous fight, particularly when people are talking about Wilder and now Jarrell Miller. Joshua has got to stay focused. He is on it. As you saw, he's ready to go."