Alexandre Muller’s parents, Stefan and Virginie Muller, played a pivotal role in nurturing his athletic journey. They maintain a relatively low-profile lifestyle despite his growing fame, but their support has been a cornerstone of his success.
Many tennis fans know Alexandre for his steady rise on the ATP Tour. He began his professional tennis career in 2014 and spent time honing his skills on the ITF and ATP Challenger circuits.
During those years, he won 17 titles in singles and doubles. He took his first Challenger title in Blois in July 2022, which pushed him into the ATP top 150.
Later, he gained his first ATP final in Marrakesh and broke into the top 100. He continued this streak in 2024 with another ATP final in Hong Kong.
Alexandre ranked world No. 39 in 2025 and was the fourth-highest French player at the time.
What makes his story more challenging is that he’s been dealing with Crohn’s disease throughout all of this. That condition makes being a pro athlete way harder. His grit has earned him respect on the ATP Tour.
Alexandre Muller’s Parents Shaped His Tennis Journey
Alexandre Müller, the son of Stefan and Virginie Müller, was born on February 1, 1997, in Poissy, France. His parents raised him in a close-knit family alongside his younger brother, Julien.
Stefan has worked in sales and business development for nearly thirty years. Since 1997, he has been a Business Account Manager at BNP Paribas Leasing Solutions. Before that, he worked in Paris at different companies.
In 1996, he was at Deledalle. From 1991 to 1996, he worked at SPREC. And before that, he spent time at H de V Diffusion.
Stefan was instrumental in introducing Alexandre to the game of tennis. They had a tennis court at home, and Stefan began playing with his son when he was just six years old.
Meanwhile, Virginie has worked as a responsable d’agence at Euler Hermes France since 1994. She studied Notarial and Legal Studies at the University of Lille 1.
Alexandre’s parents proudly support his athletic career and often share his accomplishments on social media.
Julien Muller: The Supportive Brother Behind Tennis Star Alexandre Muller
Alexandre Muller’s younger brother, Julien, has chosen a different but equally impactful path. Unlike his sports-oriented elder brother, Julien has built a career in healthcare as a dedicated physiotherapist.
He is a registered massage therapist currently working at Physio Center Bay in Cannes, France. His journey in physiotherapy began with a degree from the European University in 2022, followed by a Master’s in Orthopedic and Manual Therapy in 2023.
Before establishing himself professionally, Julien gained hands-on experience through internships at various medical institutions, including Recovery Clinic, San Jose Foundation Hospital, and Fuenlabrada University Hospital.
He also spent a month as an intern at DUFAUD JULIE, further honing his skills.
Despite their different career choices, the bond between Julien and Alexandre remains strong. They are often seen together, whether traveling with their parents or supporting each other’s endeavors.
While Alexandre thrives on the tennis court, Julien plays a crucial role behind the scenes, utilizing his expertise in physiotherapy to understand the physical demands of athletes, such as his brother.
Who Is Alexandre Muller’s Girlfriend?
Alexandre Muller is dating Julie Démoulins, and they have been spotted together at different events. Moreover, they attended a golf event with Roger Federer and went to Wimbledon together.
The romantic couple often shares a glimpse of their personal lives on social media.
Julie is an architect. She studied at the National School of Architecture in Normandy and then earned her master’s degree in Paris, at ENSA Paris-La Villette. After that, she obtained her HMONP certification, which allowed her to open her practice.
Before going out on her own, she worked with Audren & Schlumberger in Paris and with Jean-Pascal Clément in the south of France. She started her studio, Ovation Architecture, right before the COVID lockdowns.
Before Julie, Alexandre appeared to be in a relationship with tennis player Sara Cakarevic. That was back in 2016. He had posted photos with her online, and people had commented on them, suggesting they were a couple.
