The name Khamzat Chimaev conjures images of unadulterated strength, explosive self-assurance, and complete supremacy. However, beneath the air of invincibility comes a human and eerie tale of a warrior who is continually defeated by his own body rather than by opponents. The discussion surrounding “Khamzat Sick” has changed over the past few years from rumors to facts, exposing a guy who has had to fight through illness, surgery, and fatigue in order to maintain his aspirations.

His battle with physical weakness started long before his admirers took notice. He was bedridden for weeks in late 2020 due to a severe case of COVID-19, gasping for air rather than triumphing. His lungs were severely damaged by the infection, which also left him with persistent exhaustion. It was desperation, not a joke, when he declared on social media that he might retire. Once boasting that he could destroy anyone in the cage, the boxer now found himself in discomfort when he climbed a stairway. That incident served as a reminder of how erratic even the most resilient bodies can be.
Khamzat Chimaev – Personal and Professional Information
| Category | Details |
|---|---|
| Full Name | Khamzat Khizarovich Chimaev |
| Nickname | “Borz” |
| Birth Date | May 1, 1994 |
| Age | 31 years (as of 2025) |
| Nationality | Swedish (born in Chechnya, Russia) |
| Profession | Mixed Martial Artist (UFC Fighter) |
| Division | Middleweight / Welterweight |
| Notable Achievements | Undefeated streak in early UFC career, dominant multi-division wins |
| Health Challenges | COVID-19 (2020), thyroid surgery (2021), severe illness (2024), minor foot surgery (2025) |
| Reference |
In 2021, Chimaev had surgery to treat a thyroid issue that had made it difficult for him to control his weight and metabolism. Although it was a discreet, quiet process, it had a huge impact. For him, weight-cutting, which is already a risky practice for fighters, became very taxing. He had to modify his formerly brutal training method due to his unpredictable energy swings. His extraordinary recuperation from that surgery revealed a new level of patience. Supporters noticed that Khamzat was becoming more reflective and that he was using strategy, balance, and mental control instead of just aggression.
Then, in June 2024, a watershed occurred that caused the MMA world to become once again alarmed. Chimaev was sent to the hospital just days before his scheduled fight with Robert Whittaker due to what the doctors described as a severe lung infection and “immune system collapse.” According to reports, the illness was especially dangerous, preventing him from training due to headaches, fever, and exhaustion. For the second time in his career, he had to pull out of a major battle due to illness. It was unnerving for people who admired his fierceness; it was like a superhero suddenly losing his armor.
Chimaev’s attitude, however, remained defiant. He refused to allow his health define him and vowed to return stronger after being discharged from the hospital. For once, he paid attention to his physicians’ advice to rest. He took a rare break from training during the next few months to concentrate on his recuperation and diet. His viewpoint and physical recuperation both benefited greatly from the time off. He came out sounding more reflective, admitting that his intensity had frequently devolved into self-destruction. He said, “I always wanted to be more, fight more, and train more.” “But now I realize that you lose everything if you don’t look after yourself.”
His training regimen for 2025 reflected this increased dedication. Khamzat lived a solitary existence before to UFC 319, a conscious seclusion intended to protect his health. In order to work with famous performance coach Sam Calavitta, who is renowned for his scientific accuracy in athlete conditioning, he moved a portion of his camp to Southern California. Calavitta’s strategy was quite effective; it tracked oxygen levels, hydration, and recovery using data-driven techniques. Although it was very different from Khamzat’s traditional grind sessions, it was effective. His focus sharpened, his immune system significantly improved, and his energy levels stabilized.
He was characterized by his colleagues as “obsessively cautious.” He made few public appearances, shunned fan gatherings, and stayed away from crowds. He told ESPN, “I can’t risk getting sick again, even though I love people.” I must be prepared. That degree of restraint was telling for a charismatic man. It demonstrated the profound ways in which his ailments had influenced him as a person and as an athlete. Nevertheless, he exercised like a storm ready to happen, even when he was alone. He was “quietly intense,” according to teammates, hitting pads with controlled rage and conserving his energy for the one stage that really counted.
His perseverance is reminiscent of past great athletes who overcame their own physical obstacles. During the 1997 NBA Finals, Michael Jordan struggled with illness. Serena Williams regained her dominance after overcoming near-fatal health scares. Like them, Chimaev appears to be driven by an innate determination that prevents weakness from dictating his narrative. Even in the face of uncertainty, his admirers continue to support him because of his tenacity.
The topic of fighter wellbeing in mixed martial arts is also brought up by Chimaev’s health issues. Despite its popularity, the sport has long prioritized pain management over preventative care. For pride or financial gain, fighters frequently conceal wounds, drastically reduce their weight, and go past medical restrictions. Khamzat’s candor on his illness is especially novel for the sector. By openly recognizing his health, he is quietly opposing a poisonous culture that views relaxation as weakness. Younger fighters might be motivated by his story to put sustainability ahead of bluster.
He had a modest foot operation in November 2025, which was far less severe than his previous conditions. Nevertheless, it served as yet another reminder that his career is still dependent on his physical vulnerability. But his ambition hasn’t changed in spite of all the obstacles. Fans are excited about his planned fight with Robert Whittaker later this year, not only for the match’s visual extravaganza but also for what it stands for: perseverance in the face of hardship.
