Sergio “Maravilla” Martínez Reveals Shocking Boxing Damage Years After Retirement: “My Jaw Slips Out While I Sleep”

For years, fans admired the brilliance, speed, and toughness of former two-weight boxing world champion Sergio “Maravilla” Martínez inside the ring. But behind the glory, titles, and unforgettable victories, the Argentine boxing icon is now opening up about the painful physical consequences the sport has left behind — and his revelations are nothing short of heartbreaking.

Even three years after officially stepping away from professional boxing, Martínez admits the damage from decades inside the ropes still impacts his everyday life in disturbing ways. From jaw problems that interrupt his sleep to lasting hand injuries, the former champion says the brutal realities of boxing are often hidden from fighters until much later in life.

Sergio Martínez Opens Up on Painful Post-Boxing Struggles

Despite enjoying one of the most respected careers in modern boxing history, Sergio “Maravilla” Martínez says retirement has not brought peace to his body.

The former middleweight king, who initially retired in 2015 after suffering defeat to legendary Puerto Rican star Miguel Cotto, shocked many when he returned to the ring in 2020. Defying age and expectations, Martínez won all six comeback fights, proving his class had never disappeared.

Yet behind the victories, his body was paying a heavy price.

Now aged 51, Martínez has made a deeply emotional confession about the lingering injuries he still battles years after hanging up the gloves.

“Boxing left me with after-effects. While I sleep, my jaw slips out of place. I can’t bite either,” Martínez revealed.

The terrifying admission paints a grim picture of life after combat sports. While millions watched him dominate opponents with dazzling footwork and lightning-fast combinations, few could imagine the silent suffering he would later endure.

For Martínez, sleep itself has become uncomfortable due to jaw complications caused by years of punishment absorbed inside the ring.

A Boxing Legend Still Living With the Physical Cost

The shocking jaw condition is only part of Martínez’s ongoing struggle.

The Argentine great also revealed severe damage to his hands and fingers — injuries that continue to affect him long after retirement.

“My hand is wrecked and my finger is even worse,” he admitted.

It is a sobering reminder of the hidden toll elite boxing takes on even the very best fighters.

Martínez competed in an astonishing 62 professional fights and 41 amateur contests, totaling well over 100 competitive bouts across a remarkable career spanning decades.

That level of physical punishment inevitably leaves scars.

Still, rather than allowing those injuries to define him, Martínez says he is actively fighting another fear many retired athletes face — mental decline.

Sergio Martínez Fighting a Different Battle Outside the Ring

Unlike many former fighters who struggle after retirement, Martínez is taking deliberate steps to keep his mind sharp.

The former champion revealed he constantly challenges himself intellectually, using reading and writing to stay mentally active.

“I’m fighting to prevent mental decline. I never stop writing, I never stop reading,” he explained.

Martínez also revealed his remarkably disciplined lifestyle, admitting he has never consumed alcohol or smoked cigarettes — a rare feat in professional sports.

That commitment to healthy living has likely helped him remain active and competitive far longer than many expected.

Even after initially retiring, Martínez returned to boxing at nearly 45 years old and remarkably won six straight bouts during his comeback run.

His final appearance came in March 2023, when he secured a devastating first-round knockout victory at the age of 48 years and 28 days.

The Dark Side of Boxing No One Talks About

Perhaps Martínez’s most powerful statement came when discussing the long-term effects of boxing itself.

The Argentine legend believes fighters are rarely warned about the true cost of the sport until it is too late.

“Boxing is a very physically demanding sport, but no one warns about the consequences it will have as you get older,” Martínez said.

He added that awareness surrounding the long-term health risks of boxing is only now becoming more widely understood.

For decades, conversations around combat sports largely focused on championships, knockouts, rivalries, and fame. But growing discussions about neurological damage, chronic pain, joint deterioration, and post-retirement health struggles are slowly changing the narrative.

Martínez’s story serves as a powerful example of what many elite fighters silently endure after the spotlight fades.

From Buenos Aires to Boxing Greatness

Born in Avellaneda, Buenos Aires, Argentina, Sergio Martínez rose from humble beginnings to become one of boxing’s most respected champions.

Known for his slick movement, incredible reflexes, and explosive counterpunching ability, “Maravilla” captured world titles across two weight divisions and built a reputation as one of the smartest fighters of his generation.

Today, Martínez resides in Madrid, Spain, where he continues to inspire boxing fans worldwide through his honesty, resilience, and passion for life outside the ring.

But his latest revelation is a stark reminder that even champions never truly escape the battles boxing leaves behind.

For Sergio “Maravilla” Martínez, retirement may have ended the fights under the bright lights — but the physical war continues every single day.