Daniel Dubois shoves Oleksandr Usyk in first face-off ahead of undisputed fight

has viciously shoved heavyweight king during their first face-off .

On Sunday evening, it was announced that the pair would go head-to-head at Wembley Stadium, London, on July 29 with all four titles on the line in what promises to be a historic night of action.

The British star was famously stopped by the Ukrainian two years ago in a controversial dust-up in which 'Triple D' was convinced he dropped Usyk. However, his shot was deemed as a low blow, much to the frustration of Dubois. The 27-year-old is confident he can exact his revenge in the rematch and it seems as if there's a bit of bad blood following their physical altercation on Monday morning.

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Both men went nose-to-nose earlier today for what looked like a relatively routine face-off. The pair stood at the halfway line at the iconic football stadium in the nation's capital before tensions boiled over. After a few seconds of staring each other down, Dubois shocked many by shoving his long-time rival, causing Usyk to take a few steps back.

The Ukrainian was unsurprisingly left agitated by Dubois' shove and threatened to react. Without throwing anything, the 38-year-old leaned slightly forward - with Dubois appearing to just slightly flinch as security quickly intervened before the two teams could get involved.

After rematch was confirmed, the Ukrainian said: “I’m grateful to God for the opportunity to once again fight for the undisputed championship. Thank you, Daniel, for taking care of my IBF belt - now I want it back.” As for Dubois, the Brit said: "This is the fight I wanted and demanded and now I get my chance for revenge against Oleksandr Usyk,” said Dubois. “I should have won the first fight and was denied by the judgement of the referee, so I will make no mistake this time around in front of my people at the national stadium in my home city.

"I am a superior and more dangerous fighter now and Usyk will find this out for himself on July 19. I would like to thank my promoter Frank for making this happen for me and I intend to repay him by becoming the undisputed heavyweight champion of the world.”

Dubois became a world champion when he was upgraded from interim champion last summer, and defended his world title with a . There were talks of an immediate rematch, but it was deemed 'AJ' was not fit after picking up a few minor injuries from the first encounter.

'Triple D' was due to defend his title earlier this year against Joseph Parker, . Rather than rearranging that fight, Dubois will instead take on Usyk for the undisputed title. The Ukrainian hasn't fought since .

Back in February, Usyk revealed he . His comments came before Dubois was scheduled to take on Parker in Riyadh. In an interview with , Usyk - an undisputed champion at both heavyweight and cruiserweight - said: "I will fight who will win, Joseph Parker, Daniel Dubois, no problem. I think two years, one and a half [left in ]. I feel great myself. I feel I have two fights to prepare [for], not more. Just two."