When Björn Borg walked off the court at 25, few imagined that decades later his name would be back in headlines for something far more serious than a Wimbledon final. The Swedish tennis legend, who won 11 Grand Slam titles and five consecutive Wimbledon championships, is now facing a different kind of battle: prostate cancer. Here’s what we know about his health, his wealth, and the life he built after tennis.

Age: 69 (born June 6, 1956) ·
Grand Slam titles: 11 ·
Wimbledon titles: 5 consecutive (1976–1980) ·
Retirement age: 26 ·
Net worth (estimated): $30–40 million

Quick snapshot

1Current Life
2Health
3Finances
  • Net worth estimated $30–40 million
  • Income from brand royalties
  • Past prize money about $3.6 million
4Relationships
  • Divorced from Mariana Simionescu in 1984
  • Married Patricia Östfeldt since 2019
  • Friends with John McEnroe

Six key facts, one pattern: Borg’s life has been a series of remarkable extremes — from teenage prodigy to sudden retiree, from bankrupt to brand mogul, from fierce rival to trusted friend.

Field Value
Full name Björn Rune Borg
Born June 6, 1956 (Stockholm, Sweden)
Height 5 ft 11 in (180 cm)
Career titles 66 singles titles
Retired 1983 (age 26)
Spouse Patricia Östfeldt (m. 2019)

What does Björn Borg do now?

Current business activities

Borg’s name is still big business. The Björn Borg clothing brand — a line of underwear, sportswear, and accessories — reportedly generates significant royalties, according to one 2025 estimate that placed his net worth around $80 million (BDS (financial analysis site)). Other estimates peg the figure closer to $30–40 million, but the brand remains a steady income stream. Borg lives in Stockholm with his wife Patricia and keeps a relatively low profile.

Public appearances and endorsements

He occasionally steps back into the spotlight for tennis exhibitions and charity events. In 2025, he promoted his memoir Heartbeats: A Memoir, co-written with Patricia (CNN (international news outlet)). The book’s final chapter revealed his cancer diagnosis, making headlines worldwide.

The trade-off

Borg swapped the pressure of Centre Court for the freedom of building a brand. But the quiet life he built was shattered by a health crisis that forced him back into the public eye — this time as a patient, not a champion.

The implication: Borg’s post-tennis career shows that a legendary name can be a self-sustaining asset — but it also means that personal news instantly becomes global news.

Why did Björn Borg retire so soon?

Mental burnout

Borg walked away from professional tennis at age 25, citing a loss of motivation. In his memoir, he described the relentless pressure of the tour as mentally exhausting. He was the world No. 1 for 109 weeks (CNN (international news outlet)), but the constant travel and media scrutiny took a toll. “I was tired of the whole scene,” he told The Guardian (UK newspaper) in a 2025 interview.

Pressure from the tour

Borg officially retired in January 1983 at age 26 (Golden Age of Tennis (tennis history site)). He attempted a comeback in the 1990s but never returned to top form. The decision to retire so young — he had just won his 11th Grand Slam — remains one of tennis’s enduring what-ifs.

The paradox

Borg was so dominant that he made tennis look easy. But the mental cost of that dominance was so high that he walked away at the peak of his powers — leaving fans and rivals alike wondering what might have been.

What this means: Borg’s early retirement was not a failure of talent but a failure of the system to support a young athlete’s mental health — a lesson the sport is still learning.

How wealthy is Björn Borg?

Estimated net worth

Public estimates of Borg’s wealth vary widely. One 2025 analysis from BDS (financial analysis site) put the figure at $80 million, though that number is not independently verified. More conservative estimates, including those cited in the content plan, suggest $30–40 million. His career prize money was about $3.6 million — modest by today’s standards but substantial in the 1970s and early 80s.

Business earnings

Borg’s real wealth comes from the Björn Borg brand. The clothing line, launched in the 2000s, is sold in over 20 countries. He also earns from endorsements, exhibitions, and his memoir. Unlike many athletes who lose their fortune, Borg built a second act that is financially sustainable.

The pattern: Borg traded baseline tennis earnings for brand royalties — a classic example of a sports personality turning fame into a long-term revenue stream.

Are Borg and McEnroe friends now?

Reconciliation

The icy rivalry that defined men’s tennis in the late 1970s and early 80s has thawed. Borg and John McEnroe, once bitter opposites — the cool Swede vs. the fiery American — now share a genuine friendship. McEnroe described their relationship as “intense but now we’re friends” in a recent interview.

Public statements

Both have spoken warmly about each other in recent years. McEnroe praised Borg’s grace in dealing with the cancer diagnosis, and Borg has said McEnroe was one of the first to reach out. The pair have played exhibition matches together, drawing crowds who love the nostalgia of the old rivalry.

Why this matters: The Borg-McEnroe friendship shows that even the fiercest professional rivalries can evolve into mutual respect — a lesson in sportsmanship that transcends tennis.

What illness has Björn Borg got?

Prostate cancer diagnosis

In September 2025, Borg revealed that he had been diagnosed with an “extremely aggressive” form of prostate cancer. The news came in the final chapter of his memoir, Heartbeats: A Memoir, co-authored with his wife Patricia (ATP Tour (official tennis governing body)). He told the BBC the doctor’s words were “really, really bad” (ATP Tour). The diagnosis was made in 2023, and he underwent surgery in 2024.

Treatment and prognosis

Borg said the cancer is now in remission after the operation (Tennis.com / AP (sports news)). He undergoes tests every six months, and his most recent checkup in August 2025 was clean. However, he lives with the risk of recurrence, noting that doctors told him there are “sleeping cancer cells” in his body (ATP Tour). Borg’s response: “I will battle every day as if it were a Wimbledon final” (CNN (international news outlet)).

The upshot

Borg is no longer the invincible athlete on Centre Court, but his fighting spirit remains intact. The cancer is in remission, but the uncertainty of recurrence means he is living with a new kind of opponent — one that doesn’t play by any rules.

The trade-off: Borg’s willingness to go public with his diagnosis has raised awareness about prostate cancer, but it also means every scan and test result will be public news for the rest of his life.

Timeline

  • 1974 – Won first French Open at age 17
  • 1976–1980 – Won five consecutive Wimbledon titles
  • 1983 – Retired from professional tennis at age 26
  • 1984 – Divorced from first wife Mariana Simionescu
  • 1990s – Attempted comebacks but did not return to top level
  • 2019 – Married Patricia Östfeldt
  • September 2025 – Announced prostate cancer diagnosis

Confirmed facts and what’s unclear

Confirmed facts

  • Borg retired from tennis in 1983 (The Guardian (UK newspaper))
  • He was diagnosed with aggressive prostate cancer (BBC, 2025, via ATP Tour)
  • He is married to Patricia Östfeldt
  • He runs a clothing brand bearing his name

What’s unclear

  • Exact net worth is private; estimates range from $30–40 million to $80 million
  • Details of his cancer treatment are not fully public

Quotes

“I will battle every day as if it were a Wimbledon final.”

— Björn Borg, speaking to CNN (international news outlet)

“Our rivalry was intense, but now we’re friends. He’s a great guy.”

— John McEnroe, on his relationship with Borg

Summary

Björn Borg’s life after tennis has been a study in resilience — from walking away from the sport at 26 to building a brand, from a bitter divorce to a happy marriage, from a cancer diagnosis to a public battle fought with the same tenacity he brought to Centre Court. For fans who grew up watching him dominate Wimbledon, the takeaway is clear: the man who once seemed untouchable has faced life’s toughest challenges with grace. For anyone facing a similar health scare, his example is a reminder that early detection and a fighting spirit can make all the difference.

For a detailed breakdown of his financial portfolio, check out Bjorn Borgs net worth update for the latest figures from 2025.

Frequently asked questions

How old is Bjorn Borg?

He was born June 6, 1956, making him 69 years old as of 2025.

What is Bjorn Borg’s net worth?

Estimates vary, but most sources put his net worth between $30 million and $80 million, largely from his clothing brand and endorsements.

Is Bjorn Borg married?

Yes, he married Patricia Östfeldt in 2019. He was previously married to Mariana Simionescu from 1980 to 1984.

What brand does Bjorn Borg own?

He owns the Björn Borg clothing brand, which sells underwear, sportswear, and accessories globally.

How many Wimbledon titles did Bjorn Borg win?

He won five consecutive Wimbledon singles titles from 1976 to 1980.

Did Bjorn Borg ever return to tennis after retirement?

He attempted a comeback in the 1990s but did not return to the top level of the sport.