Holger Rune 2025: Withdrawal, Coaching Split, Injury

One moment Holger Rune was clawing his way back toward the top of men’s tennis. The next, he was on an operating table with a fully ruptured Achilles tendon, his 2025 season in tatters. The 23-year-old Dane has since withdrawn from Roland Garros, split with his high-profile coach, and now faces the hardest climb of his young career.

Age: 23 (born April 29, 2003) ·
Current ranking: World No. 13 (as of May 2025) ·
Career-high ranking: World No. 4 ·
Career titles: 4 ATP singles titles ·
Turned pro: 2020

Six biographical snapshots reveal the trajectory of a player who burst onto the scene at 17 and has already experienced the full arc of elite tennis.

Here are the key facts about his profile.

What has happened to Holger Rune?

Rune’s 2025 season struggles

• After reaching a career-high ranking of World No. 4 in April 2023 (ATP Tour, the governing body of men’s professional tennis), Rune’s form began to slip through 2024.
• He lost early in multiple tournaments and struggled to find consistency under coach Patrick Mouratoglou.
• The downward trend culminated in a devastating injury during the Stockholm Open semi-final against Ugo Humbert on October 19, 2025 (ATP Tour).

Rune retired at 2-2 in the second set of that Stockholm semi-final. The ATP confirmed he had suffered an Achilles injury during the match.

Roland Garros withdrawal

• On May 11, 2026, Tennis Majors reported that Rune had withdrawn from both the Hamburg Open and Roland-Garros (Tennis Majors, a specialist tennis news outlet).
• Rune said he “did not want to return until he was ready at 110%” — an unusually cautious stance for a player known for his on-court aggression.
• The AP reported the withdrawal on May 11, 2026, noting that Rune would target a return for the grass season instead (AP via Yahoo Sports).

The pattern: Rune has now missed two consecutive clay seasons (2025 and 2026) — the surface on which he made his deepest Grand Slam runs.

Is Holger Rune still with Patrick Mouratoglou?

Mutual split announcement

• In May 2025, Rune and Patrick Mouratoglou mutually agreed to end their coaching relationship (AP via Yahoo Sports).
• The split was confirmed by the ATP Tour, though neither party disclosed a specific reason.
• Mouratoglou, former coach of Serena Williams, had worked with Rune from 2022 through early 2025, helping guide the Dane to his career-high ranking.

Mouratoglou’s role in Rune’s career

• Under Mouratoglou, Rune won three of his four ATP titles and broke into the Top 5.
• The partnership ended as Rune’s results plateaued and his ranking fell from No. 4 to No. 13 by May 2025.
• An official Roland-Garros player profile listed Rune’s coaches as Lars Christensen and Kenneth Carlsen as of late May 2025 (Roland Garros, the tournament’s official website).

What this means: Rune is currently without a permanent coach at the most physically demanding moment of his career. Until he appoints a replacement, the Danish star is navigating Achilles rehab and a planned grass-court comeback without a dedicated tactical voice.

Why did Holger Rune retire?

Retirement from specific matches

• Rune has not permanently retired from tennis.
• He did retire from his Stockholm Open semi-final against Ugo Humbert on October 19, 2025, due to the Achilles injury (ATP Tour).
• He also withdrew from the Hamburg Open and Roland-Garros in 2026, but these were pre-tournament withdrawals, not mid-match retirements (Tennis Majors).

Illness and injury details

• Multiple reports cited illness as the reason for Rune’s Roland Garros withdrawal (AP via Yahoo Sports).
• A Tennis Now report suggested a knee injury sustained during comeback training was also a factor (Tennis Now, a tennis news site).
• Rune himself said the decision to skip the clay season was “difficult but correct” (AP via Yahoo Sports).

The catch: The exact reason for the Roland Garros withdrawal remains unclear — illness, knee trouble, or both. The divergence in reporting underscores the opacity around Rune’s current health status.

Where does Holger Rune live now?

Current residence

• Rune maintains dual residency between Denmark and Monte Carlo.
• He trains at the Mouratoglou Academy in the South of France when not competing or rehabbing.

Training base

• Monte Carlo offers a central European location with easy access to clay and hard courts, plus warm-weather training year-round.
• His Danish base allows him to remain connected to his national tennis federation and personal support network.

The implication: Rune’s dual-residence setup is standard among top ATP players. The real question is which facility will host his Achilles rehab — and whether he has access to the specialized physiotherapy required for a full return.

Is Holger Rune ill?

Recent health issues

• Rune cited illness as the reason for his withdrawal from Roland Garros in May 2026 (AP via Yahoo Sports).
• The specific nature of the illness has not been publicly disclosed.
• This came on top of the Achilles tendon injury that required surgery in October 2025.

Impact on performance

• Rune’s ranking fell from World No. 4 (April 2023) to World No. 13 (May 2025) amid the injury and coaching instability.
• He has not competed in a Grand Slam since the 2025 Australian Open.
• The enforced break from competition means Rune faces a ranking protection battle when he returns.

The trade-off: Rune is betting his long-term health against short-term ranking losses. By skipping Roland Garros and Hamburg, he preserves his grass-court window but drops more points — a gamble that only pays off if he returns at full strength.

“Skipping the clay season was a difficult choice but the correct one.”

Holger Rune, in a statement reported by AP via Yahoo Sports

“I love clay. Paris and Roland Garros have always been special to me. I don’t want to come back at less than 110%.”

Holger Rune, quoted by Tennis Now

For Danish tennis fans, the choice is clear: Rune must prioritize a complete Achilles recovery over a rushed return. A grass-court comeback in June 2026 gives him a six-week window before Wimbledon — or he risks a setback that could sideline him through 2027.

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