Daniel Dubois has left trainer Don Charles following his stoppage defeat by Oleksandr Usyk.
Dubois will now be working with former Anthony Joshua coach Tony Sims as he attempts to get his career back on track. Dubois' decision comes hot on the heels of Charles' assistant trainer Kieran Farrell announcing he would no longer be working with the former world champion.
Dubois began working with Charles two years ago following a spell with Shane McGuigan, son of boxing legend Barry. Before that, Dubois had been under the tutelage of Mark Tibbs.
Charles was in Dubois' corner for the three best wins of his career; against Jarrell Miller, Filip Hrgovic and Anthony Joshua. Dubois was crowned world champion following his win over Hrgovic when Usyk gave up his IBF belt.
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The pair first met in 2023 when Usyk stopped the Brit in the ninth round and he improved on that performance two years later when he knocked out Dubois in the fifth session. Dubois is not expected to return to the ring his year as he plots his comeback.
Since losing to Usyk, it has emerged Dubois' dad held a party at the family home hours before the first bell. Up to 70 people gathered at the house with footage emerging of Dubois mingling with guests.
But Charles was quick to defend the event, telling talkSPORT: "It wasn't a party, it was a gathering. The same gathering was used as the prep on fight day for the AJ fight, the day he won. "A lot was made of it with the energy he walked out at for the Anthony Joshua fight. That gathering was taken from home to the dressing room for that fight.
"That energy is what gave birth to that energy that he showed in the ring walk. Yes [we tried to replicate it], we were victorious. If it works for you the first time, you'd do it again.
"There might have been more people for this second gathering to get more energy, I'm a logical man and it makes logical sense. The AJ fight was big but this even trumps it, I try to understand and it may appear madness to people but it was the same thing that got us victory.
"I wasn't there and I chose not to go there. My duty is on the training team to make sure we go to the dressing room and make sure everything is intact."
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