Talk about timing. Four weeks before he seeks to become a three-time undisputed champion, and second time at heavyweight, unified titleholder Oleksandr Usyk will tick off a childhood dream of competing at London's Wembley Stadium next month when rematching IBF titleholder Daniel Dubois.

However, he will do so without longtime promoter Alex Krassyuk by his side, after the K2 Promotions chief's social media post overnight confirmed the pair had parted ways.

"It's been a tremendous journey -- 12 years of unbelievable success. Two young dreamers met each other to change the game, 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," the post said.

Accompanied by a series of pictures with them over the years, from his run to undisputed status at cruiserweight and relishing enemy soil at London's Tottenham Hotspur Stadium before he dethroned Anthony Joshua, and later another former British heavyweight champion in a two-fight series with Tyson Fury both from Riyadh, Saudi Arabia. 

"A dream come true. Thank you for all we've gone through and for the honor to be the lifetime promoter of the Double Undisputed. May the Lord bless you and guide your next steps, thanks God for everything."

Team Dubois will relish this news breaking as it has and will certainly use any advantage they can take into the rematch, as conspiracy theories and negative press from a historically drama-free Usyk camp is something they'll look to unsettle him with.

Krassyuk noted the many milestones they conquered together, winning WBO cruiserweight honours after a 12-round decision victory over Poland's then-unbeaten titlist Krzysztof Glowacki in September 2016, to being a two-weight undisputed champion eight years later.

Krassyuk, who promoted his first event in 2006 featuring the likes of former interim world junior welterweight challenger Serhii Fedchenko, started to intensify his frequency of shows between 2010-11 as Usyk was busy flourishing on the world scene as an amateur.

Since a 14-10 points defeat by Russian southpaw Egor Mekhontsev in the AIBA World Championships semi-finals in September 2009, Usyk hasn't lost a fight - amateur or pro - instead scooping up more titles across different countries and thriving in the paid ranks.

The 38-year-old, who has been sparring with former Bellator MMA welterweight champion Yaroslav Amosov among others in his latest training camp, has yet to provide comment but will almost certainly address the news at some stage too.