Maintaining a relationship at the summit of professional sports requires a delicate balance between public visibility and private stability. For Jannik Sinner, the world-renowned tennis champion, this balance has become a focal point of interest alongside his on-court dominance. Since late 2025, the figure most frequently seen supporting him from the player's box is Laila Hasanovic, a Danish model and content creator who has transitioned from a high-profile figure in the fashion world to a constant presence in the elite tennis circuit.

The public introduction at the Vienna Open

While rumors regarding Sinner's personal life often circulate within the tennis community, the official confirmation of his relationship with Laila Hasanovic came in a manner characteristic of Sinner’s understated personality. Following his victory at the Vienna Open in October 2025, Sinner used his trophy ceremony speech to acknowledge the support system that allows him to compete at such a high level. Though he typically keeps his personal life under wraps, he explicitly mentioned his girlfriend while expressing gratitude to his family and team.

Laila Hasanovic was seated alongside Sinner’s parents, Johann and Siglinde, during that tournament, signaling a level of integration into his inner circle that fans had not seen previously. Sinner’s words during the ceremony highlighted the complexity of dating a professional athlete, noting that it is not always easy to understand the demands of his schedule and focus, yet thanking Hasanovic for her effort and presence.

Who is Laila Hasanovic?

Born in November 2000 in Copenhagen, Denmark, Laila Hasanovic has established a significant professional identity independent of her relationship with the Italian tennis star. Her background is a blend of Danish upbringing and Bosnian heritage, which she has often cited as an influential part of her identity. Hasanovic first gained public attention as a finalist in the Miss Denmark 2019 pageant, a platform that launched her career in the competitive world of European modeling.

Her professional portfolio is diverse, ranging from high-fashion runway work to major commercial campaigns. Notably, she has been recognized as a muse for legendary brands like Giorgio Armani, frequently appearing at prestigious events such as the Venice Film Festival. Beyond traditional modeling, Hasanovic has built a substantial digital presence, with hundreds of thousands of followers across platforms like Instagram and TikTok, where she shares insights into her travel, fashion choices, and lifestyle.

Educationally, Hasanovic completed her studies at Svendborg Gymnasium in Denmark. She also spent time as an exchange student in Kentucky, USA, which likely contributed to her fluency in English and her ease in navigating international environments—a necessary skill for someone now frequently traveling on the ATP Tour.

A timeline of shared moments

The trajectory of Sinner and Hasanovic’s relationship has been tracked through several key sporting events throughout 2025 and into the early months of 2026. Prior to the official announcement in Vienna, keen observers noted her presence at the French Open and the US Open in 2025. During the US Open, despite intense media speculation involving other public figures, Hasanovic was the one consistently spotted in the stands, even featuring on Sinner’s smartphone lock screen—a detail noticed by digital detectives among the fanbase.

In November 2025, during the Nitto ATP Finals in Turin, the relationship was on full display in Sinner’s home country. After his victory against Carlos Alcaraz, Hasanovic joined him on the court, marking a rare moment of public celebration together. This was followed by a more relaxed appearance at the Abu Dhabi Grand Prix in December 2025, where the couple was seen in the Formula 1 paddock, mingling with other sporting figures and executives. These appearances suggest a partnership that is comfortable with the spotlight of major international events while maintaining a sense of normalcy away from the cameras.

Life in Monte Carlo

Like many of the world's top-ranked tennis players, Jannik Sinner resides in Monte Carlo. This Mediterranean enclave serves as a base for his training during the off-season and short breaks between tournaments. Local reports from journalists in the principality suggest that Sinner and Hasanovic have settled into a serene lifestyle in the La Condamine district. They are often described by locals as a polite and kind couple who enjoy the simple pleasures of the neighborhood.

One frequently mentioned spot is a local gelato shop near their residence. Sinner, known for his disciplined approach to nutrition, reportedly allows himself the occasional treat here, with Hasanovic often by his side. These glimpses into their daily life portray a relationship built on shared interests and a desire for a low-key existence despite their high-profile careers. Living in Monte Carlo also provides the privacy they both value, away from the more intrusive media presence found in major capitals.

Balancing high-stakes tennis and romance

Sinner has been vocal about the challenges of maintaining a relationship while pursuing the world No. 1 ranking. In various interviews, including a notable feature in Vanity Fair Italia, he discussed the mental load of professional tennis. He emphasized that during tournaments, his focus is almost entirely on his performance, which requires a partner who is both independent and supportive of the rigors of the tour.

He has also observed that most of the greatest players in history have had stable support systems at home. For Sinner, finding "the right love" is seen as a grounding force rather than a distraction. This philosophy seems to be shared by Hasanovic, who manages her own busy modeling career and brand collaborations alongside the demands of Sinner’s travel schedule.

Past relationships and public scrutiny

Both Sinner and Hasanovic have had previous high-profile relationships that were the subject of media attention. Sinner was formerly in a relationship with fellow tennis professional Anna Kalinskaya, a partnership that garnered interest due to their shared profession. Before that, he was linked to Italian model Maria Braccini.

Hasanovic, for her part, was in a long-term relationship with Formula 1 driver Mick Schumacher. This three-year relationship ended in early 2025, shortly before her connection with Sinner began. Her history with high-profile athletes has likely prepared her for the unique pressures that come with being the partner of a global sports icon like Sinner.

The intersection of fashion and sports

The relationship between a top-tier athlete and a high-fashion model is a familiar trope, but Sinner and Hasanovic bring a modern edge to it. Sinner’s own involvement in fashion—marked by his groundbreaking partnership with Gucci and his role as a brand ambassador for Rolex—aligns perfectly with Hasanovic’s career. They represent a new generation of sports couples who are as comfortable at a fashion week event in New York or Milan as they are at a Grand Slam final.

Hasanovic’s work with Armani Beauty and her appearances at fashion galas provide a complementary professional sphere to Sinner’s athletic achievements. This synergy often leads to shared invitations to exclusive events, where they are seen as ambassadors for both their respective industries and their home nations.

Navigating the digital era

Despite Hasanovic’s career as a content creator, the couple remains remarkably private on social media. They rarely post photos of each other on their primary feeds, choosing instead to keep their personal interactions for themselves. This strategy helps them avoid the pitfalls of overexposure and allows them to control the narrative of their relationship.

Fans often have to look to background shots in vlogs or paparazzi photos in Monte Carlo to get a glimpse of their life together. This discretion has only served to increase public fascination, yet it appears to be a deliberate choice to protect the sanctity of their partnership. In an era where many "power couples" capitalize on their relationship for digital engagement, Sinner and Hasanovic’s approach is a refreshing return to a more traditional form of privacy.

The role of the support system

In the modern game of tennis, the team surrounding a player is as important as their physical training. This team includes coaches, physiotherapists, and increasingly, emotional support systems. Hasanovic’s presence in the player box is seen by many analysts as a sign of stability in Sinner’s life. When a player is competing for the highest honors in the sport, such as defending a Grand Slam title or maintaining the world No. 1 ranking, the ability to return to a supportive and understanding partner can be a significant competitive advantage.

Her integration with Sinner's coaching team and family suggests that she is not just a spectator but a part of the environment that fosters his success. The smiles and celebratory moments shared with Sinner's parents in the stands are a testament to the healthy dynamic they have built.

Future outlook for the couple

As Sinner continues to break records and cement his legacy in Italian and global tennis, the interest in his relationship with Laila Hasanovic is likely to persist. For now, they seem to have found a rhythm that works for both of them—balancing the glamour of international fashion and the intensity of pro tennis with a quiet, grounded life in Monte Carlo.

Whether they are seen sharing a laugh at a dinner show in Dubai or walking through the paddock at a Grand Prix, the couple exemplifies a modern, professional, and deeply supportive partnership. For Sinner, having a partner like Hasanovic, who understands the world of high-stakes competition and public life, is clearly an asset as he continues his journey at the top of the ATP rankings.