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InjuryATP Tour· 5 min read· in Sports

Holger Rune Targets August Hard-Court Return Following Grueling Achilles Rehab

After a devastating Achilles rupture sidelined him for nine months, former World No. 4 Holger Rune is eyeing a return at the Canadian Open or Cincinnati Masters. The 23-year-old Dane has prioritized a cautious, full recovery over a rushed comeback.

By Jackson Reed

Rune's Management Team 40%Sports Medical Analysts 35%Tour Analysts 25%
Rune's Management Team
Prioritizing a complete, uncompromised physical recovery over a rushed return to the tour.
Sports Medical Analysts
Highlighting the unique biomechanical dangers of an Achilles rupture in professional tennis.
Tour Analysts
Viewing the injury as a cautionary tale about the grueling modern ATP schedule.

Perspectives this story doesn't cover

  • Other ATP players recovering from similar long-term injuries
  • Tournament directors who lost a marquee draw due to his extended absence

How we got here

  1. Oct 2025

    Suffers a complete Achilles tendon rupture at the Stockholm Open.

  2. Jan 2026

    Begins walking normally and initiates light on-court rehabilitation.

  3. Apr 2026

    Delays his initial comeback target, withdrawing from the Hamburg Open and Roland Garros.

  4. Jun 2026

    Rules himself out of Queen's Club and Wimbledon to avoid rushing his recovery on grass.

  5. Jul 2026

    Camp confirms he is playing full practice points and targeting an August hard-court return.

The long wait is nearly over for Holger Rune. Nine months after a devastating Achilles tendon rupture brought his 2025 season to a screeching halt, the 23-year-old Danish star is finally preparing to step back onto the ATP Tour. The injury, which occurred during the semifinals of the Stockholm Open last October, required immediate surgery and plunged one of the sport's most promising young careers into a grueling period of uncertainty. Now, after a meticulous and often frustrating rehabilitation process, the former World No. 4 is eyeing the North American hard-court swing for his highly anticipated comeback.[1]

According to a recent update from his mother and manager, Aneke Rune, the Danish phenom is making "really good progress on the court" and is targeting the Canadian Open in Montreal, which begins on August 3, or the subsequent Cincinnati Open. The announcement marks a significant milestone in a recovery journey that has tested Rune's patience and physical resilience. By aiming for the August Masters 1000 events, Rune is positioning himself to build crucial match fitness ahead of the US Open, ensuring he returns on a surface that offers predictable footing compared to the treacherous lawns of Wimbledon.

The road back has been anything but linear. Initially, Rune and his medical team had circled the European clay-court swing as a potential return window, specifically targeting the Hamburg Open in mid-May. However, as the date approached, the reality of the injury set in. Recognizing that he was not fully ready to endure the sliding and grinding required on clay, Rune made the difficult decision to withdraw from Hamburg and, subsequently, Roland Garros. He then skipped the entire grass-court season, including Queen's Club and Wimbledon, refusing to compromise his long-term health for a premature return.[1][2]

Rune's methodical timeline to recovery.

"Things are looking good now, so it's really when I feel ready, I'll be back," Rune explained in a recent interview, emphasizing that he refused to put a strict date on his return. "I don't want to come back feeling almost ready, but 110 percent ready when I step on court again." This mature approach represents a shift for a player historically known for his relentless, sometimes impatient, drive to compete. Rather than rushing back to defend ranking points, Rune has prioritized a complete structural recovery.[2]

The physical toll of the rehabilitation has been profound. Unable to walk normally for the first two months post-surgery, Rune experienced significant bodily changes. Aneke Rune candidly revealed that her son initially gained a substantial amount of weight—joking that he "became a giant loaf of bread"—as he consumed high amounts of protein to aid tissue healing while remaining entirely sedentary. For a world-class athlete accustomed to burning thousands of calories a day, the sudden halt in activity required a complete metabolic adjustment.[3]

Unable to walk normally for the first two months post-surgery, Rune experienced significant bodily changes.

However, as his mobility gradually returned, Rune transformed that static mass into functional strength. He has reportedly shed the excess weight and added significant muscle to his upper body, utilizing the extended layoff to rebuild his physique from the ground up. Training at the Mouratoglou Academy and the Aspetar orthopedic hospital in Doha, Rune worked with specialized physiotherapists to ensure his entire kinetic chain was fortified to support the repaired tendon.[3]

Tennis places immense, repeated stress on the Achilles tendon through constant lateral changes of direction.

In professional tennis, an Achilles rupture is notoriously difficult to overcome. The sport demands explosive lateral movements, sudden stops, low defensive lunges, and violent changes of direction—all of which place immense, repeated stress on the Achilles tendon. Unlike a muscle strain, a repaired tendon must regain not just flexibility, but the absolute tensile strength required to absorb the shock of a hard-court sprint. Even a fractional loss of explosiveness can be the difference between a top-10 ranking and early tournament exits.

Rune has also spent his time away reflecting on the root cause of the injury, ultimately pointing to a punishing late-season schedule. In the weeks leading up to the rupture, he played the US Open in New York, flew to Europe for a Davis Cup tie on clay, returned to the United States for the Laver Cup on indoor hard courts, and then immediately flew to Asia for tournaments in Tokyo and Shanghai, before heading back to Europe for the Stockholm Open. He admitted that the relentless travel, time-zone hopping, and constant surface changes were simply "too much for my body."[2]

Rune attributed his injury to a punishing schedule of constant travel and surface changes.

That grueling itinerary serves as a cautionary tale in an era where top players are increasingly vocal about the physical demands of the 11-month tennis calendar. By acknowledging that schedule overload played a critical role in his body breaking down, Rune is signaling a likely shift in his future tournament planning. Moving forward, load management will be just as vital to his success as his blistering forehand.[2]

Today, the focus is entirely on the future. Rune's camp confirms that he is now playing out full practice points and testing his movement without restrictions. With his knee and Achilles responding positively to the increased workload, and a new racket partnership finalized, the pieces are falling into place. The tennis world now eagerly awaits the return of one of its most electrifying competitors, watching to see if the grueling nine-month hiatus has forged an even more formidable athlete.[1]

What to know

  1. Holger Rune is targeting an August return at the Canadian Open or Cincinnati Masters.
  2. The 23-year-old has been sidelined since October 2025 due to a fully ruptured Achilles tendon.
  3. Rune skipped the entire clay and grass seasons to ensure he returns at "110 percent" fitness.
  4. His mother confirmed he has rebuilt his physique, adding upper-body muscle during rehab.
  5. Rune attributed the initial injury to a grueling schedule of surface changes and constant travel.
9 months
Time sidelined since injury
August 3
Canadian Open start date
No. 4
Rune's career-high ranking

Unanswered questions

  • How quickly Rune will be able to trust his explosive lateral movement in a live match environment.
  • Whether he will require a modified, lighter tournament schedule going forward to prevent reinjury.
  • How long it will take for him to regain his top-10 form after nearly a year away from competitive tennis.

Sources

Source coverage

3 outlets

3 viewpoints surfaced

Rune's Management Team 40%Sports Medical Analysts 35%Tour Analysts 25%
  1. [1]Tennis MajorsTour Analysts

    Rune rules himself out of Wimbledon as Achilles and recovery recovery continue

    Read on Tennis Majors
  2. [2]Tennis World USATour Analysts

    Holger Rune blames schedule overload for Achilles injury

    Read on Tennis World USA
  3. [3]TennisUpToDateRune's Management Team

    "He couldn't move, so he suddenly became a giant loaf of bread" - Holger Rune experienced large weight gain following achilles injury

    Read on TennisUpToDate

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