Müller’s most memorable achievement came in 2023 when he won gold in both singles and doubles at the European Championships in Rotterdam, Netherlands. Reflecting on his success, he said, "It's very very crazy. I'm nearly 60 years old and I'm a double European champion. It feels very good."

Influences and Rituals

Müller credits his wife Anja as his biggest influence. He also has a unique pre-game ritual where he tells himself to make the game as difficult as possible for his opponent. This mindset has clearly paid off in his performances.

Philosophy and Awards

His philosophy revolves around "Quality, durability, and endurance made in Germany." This approach has earned him recognition. In 2022, Müller and his doubles partner Rick Cornell Hellmann were named Para Badminton Pair of the Year by the Badminton World Federation (BWF). Additionally, he received the Lower Saxony Sports Medal in October 2019.

Current Endeavours

Outside of sports, Müller runs a holiday home rental business on the Costa Blanca in Spain. He speaks English, German, and Spanish, which helps him manage his business effectively. His family includes his wife Anja and their four children.

Future Plans

Looking ahead, Müller plans to continue competing at high levels while managing his business. His dedication to both his sport and his entrepreneurial ventures showcases his commitment to excellence.

Müller’s journey from starting Para Badminton at 37 to becoming a double European champion is inspiring. His story is a testament to hard work, determination, and the support of loved ones.