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Daniel Dubois Splits From Trainer After Second Heavyweight Loss to Oleksandr Usyk

Daniel Dubois ended his partnership with Don Charles after his stoppage loss to Oleksandr Usyk and hired Tony Sims to rebuild his career with a new training team.

  • Daniel Dubois, the former IBF heavyweight champion, lost by fifth-round stoppage to Oleksandr Usyk at Wembley Stadium in their recent rematch.
  • The fight day featured controversy as Dubois' father hosted a pre-fight gathering of around 70 people at their family home just hours before the bout.
  • Trainer Don Charles defended the gathering as a tradition aimed at replicating energy from past wins, clarifying he was not present and focused only on locker room duties.
  • Following the defeat and internal turmoil including assistant coach Kieran Farrell's departure, Dubois parted ways with Charles and has appointed Tony Sims, former Anthony Joshua coach, for his new training team.
  • Dubois is currently restructuring his team and plotting a career comeback but is not expected to fight again this year as he seeks to regain momentum.
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Boxing News broke the news in on Monday, August 18, 2025.
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