Frank Warren has warned Daniel Dubois not to bank on the shock split between Oleksandr Usyk and long-time promoter Alex Krassyuk affecting the unified champion’s performance whatsoever.

There is now less than a month before The Ring's champion Usyk puts his titles on the line against IBF champion Dubois in an undisputed heavyweight fight at Wembley Stadium.

But all has not been well inside Team Usyk and the changes came to a head this past weekend when the heavyweight’s promoter confirmed they had parted ways after what he described as ‘12 years of unbelievable success’.

“Two young dreamers met each other to change the game,” Krassyuk wrote on social media. “Back in 2013, I gave you my word and kept it. At the time, no-one believed we were capable of achieving what we set out to do. But by the grace of God, we completed the mission impossible.”

With Usyk now vying to become a three-time undisputed champion, and history’s first two-time four-belt heavyweight king, his mission is not yet over but he will press on without Krassyuk by his side.

It had been suggested that such turmoil inside the camp might just offer Dubois a confidence boost as he bids to not only become the first man to beat Usyk as a professional but also exact revenge for his ninth round stoppage in Poland nearly two years ago.

But Warren, who has promoted Dubois for his whole professional career, does not buy that the split will help Dubois.

“It’s nothing,” Warren said during an interview with The Ring. “I don’t see it affecting Usyk in this fight.

“The one who has the power in that camp is the trainer Sergey [Lapin] so I don’t see how it will affect anything on a day-to-day basis. His training camp is nothing to do with Krassyuk so I think it will be business as usual as far as that is concerned.

“And the deal has already been done for this fight so there is nothing to worry about there either. He was his promoter, but when was the last time he actually promoted him? They have been boxing on everyone else’s show. He hasn’t been promoted by him, as the lead promoter, for years now.”

Usyk’s last two fights, both against Tyson Fury, both won on points, took place on Riyadh Season cards at the Kingdom Arena. Incidentally, the last time Krassyuk was listed as lead promoter for an Usyk fight was his first victory over Dubois in Wroclaw, Poland in August 2023.

“I don’t see this news having any bearing on the fight,” Warren added. “He’s 37 years old, he’s no schmuck. He’s a sensible, fellow Usyk, and given what they are dealing with - with bombs being dropped on their country - I should think this split is actually a minor detail.”

In contrast, from the outside at least, it seems as though everything has been plain sailing for Dubois and his team. Warren, like he said Krassyuk did, keeps himself at arm’s length from the day-to-day graft in order to let them get on with it without any interference.

“Daniel is in a good place,” Warren said. “I let them get on with it and I always think that if I don’t hear from them then there’s no problem. They only come to me when there’s a problem so - at this point, no news is good news.

“I speak to Don all the time so I know what’s going on and that is all that I care about.”

It was reported that more than 60,000 tickets for the fight, Dubois’ second consecutive headline appearance at Wembley Stadium, were snapped up within 24 hours of going on sale in early May. That number, Warren says, has risen to nearly 80,000 and they are now considering a move to extend the capacity to its 94,000 capacity.

He said: “We’re at 78,000 now. When we get to around 84,000, or near that, then we will go for the 94,000. You have to apply for that ahead of time so we will only do that if we are confident of filling the seats. We still have a bit of time to get that done.”