Nikita Tszyu refuses to fight brother Tim, calling it a 'very personal thing'

Key facts

• Nikita Tszyu faces undefeated Spanish opponent Oscar Diaz in Newcastle on May 6.
• Brother Tim Tszyu is unlikely to attend the fight due to ongoing estrangement.
• Relations soured after Tim's split from manager Glen Jennings, leading to legal action.
• The legal dispute was seemingly resolved earlier this week.
• Anthony Mundine proposed the brothers settle differences in the ring.
• Nikita insists he cannot fight Tim because it would require a mindset of taking a life.
• Nikita says he cannot put that stress on his family.

The Butcher draws a line

Nikita Tszyu, known as 'The Butcher,' has drawn an unequivocal line: he will never step into the ring with his older brother Tim, no matter how frosty their relationship becomes. Speaking just days before his Main Event headliner against Spain's unbeaten Oscar Diaz, Nikita told Fox Sports Australia that he has been trying not to dwell on the family rift during fight camp. 'I always try and think in a positive way about things,' he said. The brothers are reportedly not on speaking terms, and Tim is not expected to attend the Newcastle bout on Wednesday, May 6.

A feud born from a managerial split

The tension between the Tszyu siblings traces back to Tim's decision to part ways with their longtime manager Glen Jennings. That split spiraled into legal action, which appeared to be resolved earlier this week. Yet the resolution has not thawed the personal chill. Nikita acknowledged the distance but declined to elaborate, focusing instead on his own preparation.

Mundine's provocative proposal

Australian boxing legend Anthony Mundine stirred the pot this week, suggesting to Code Sports that the brothers could settle their differences the old-fashioned way — by fighting each other. The idea would produce one of the biggest bouts in Australian boxing history, but Nikita rejected it outright. 'I don't want to get into that sort of headspace,' he said. 'Fighting is a very personal thing to me. I get into the headspace where I need to think I'm taking someone's life and be ready to do that. I can't do that with a family member.'

The psychological cost of combat

Nikita's refusal is rooted in the brutal psychology of professional boxing. He described the mental preparation required for a fight as a process of convincing himself he is ready to take an opponent's life — a mindset he cannot summon against a brother. 'I can't put that stress on my family as well,' he added, underscoring that the burden would extend beyond himself to their entire family.

Ahead of the Diaz clash

On Thursday in Sydney, Nikita faced Oscar Diaz for the first time at a press conference, less than a week before their bout in Newcastle. Diaz, an undefeated Spanish fighter, presents a significant test for the Australian prospect. The fight, available on Main Event via Kayo Sports, will be Nikita's latest step in his rising career. Whether Tim watches from afar remains an open question, but the brothers' estrangement shows no sign of healing.

What comes next for the Tszyu brothers

With the legal dispute behind them, the path to reconciliation exists, but neither brother has signaled a willingness to walk it. Nikita's focus is squarely on Diaz, while Tim's camp has offered no public comment on the feud. For now, the only fight Nikita Tszyu will entertain is the one in the ring on Wednesday night. The idea of a brother-versus-brother blockbuster remains, in his words, a non-starter.

The bottom line

• Nikita Tszyu will never fight his brother Tim, citing the psychological toll of treating a family member as an opponent.
• The brothers' estrangement stems from Tim's split from manager Glen Jennings and subsequent legal action, recently resolved.
• Anthony Mundine proposed a sibling fight, but Nikita rejected it as impossible given his mindset of 'taking a life.'
• Nikita faces undefeated Spanish boxer Oscar Diaz in Newcastle on May 6, a bout Tim is unlikely to attend.
• The feud remains unresolved, with no public indication of reconciliation from either brother.