Flückiger suspended after positive doping test for Zeranol

Mathias Flückiger (Thömus Maxon) wins in Leogang
Mathias Flückiger (Thömus Maxon) wins in Leogang (Image credit: Rob Jones)

Mountain bike specialist Mathias Flückiger (Thömus Maxon) has tested positive for a banned anabolic substance, Zeranol, in a test taken during the Swiss Cross Country Championships on June 5 in Leysin, where he won the national title. 

The Olympic Games silver medallist has been provisionally suspended with immediate effect, according to a press release from Swiss Cycling, and is currently under investigation by national anti-doping agency Swiss Sport Integrity.

Latest Videos From
Kirsten Frattini
Editor

Kirsten Frattini has been the Editor of Cyclingnews since December 2025, overseeing editorial operations and output across the brand and delivering quality, engaging content.

She manages global budgets, racing & events, production scheduling, and contributor commissions, collaborating across content sections and teams in the UK, Europe, North America, and Australia to ensure audience and subscription growth across the brand.

Kirsten has a background in Kinesiology and Health Science. She has been involved in cycling from the community and grassroots level to professional cycling's biggest races, reporting on the WorldTour, Spring Classics, Tours de France, World Championships and Olympic Games.