Once Van Aert's trusted right hand man, but now, Amund Grondahl Jansen (31) retires

Amund Grøndahl Jansen has decided to bring his professional cycling career to an end. The 31-year-old Norwegian parted ways with Uno-X Mobility at the end of 2025 and has now chosen not to continue as a professional rider. During his career, Jansen spent four seasons with LottoNL-Jumbo and Jumbo-Visma, before moving via Jayco AlUla to the Norwegian squad.

Jansen began his career in 2013 with the Norwegian team Plussbank. In 2016, he made a strong impression at Team Joker in the U23 ranks, most notably by winning a stage at the Tour de l’Avenir. That performance earned the then 22-year-old a WorldTour contract with LottoNL-Jumbo, where he quickly demonstrated his value—particularly in the Flemish one-day races.

Over the years, Jansen developed into a highly valued domestique in the classics, but he also rode the Tour de France three years in a row for the Dutch team. His best season came in 2019, when he won a stage at the Ster ZLM Tour and claimed several top results in major races. He was also a key part of the classics squad built around Wout van Aert.

He signed with Team BikeExchange-Jayco, the predecessor of Jayco AlUla, but endured four very difficult years there. Narrowed iliac arteries hampered his performances, preventing him from making the transition from pure domestique to more aggressive, attacking roles. A fresh start with Uno-X Mobility seemed necessary, but things did not fall into place there either. At the end of 2025, his contract was not renewed.

Jansen was forced to reflect on his future: continue as a professional cyclist, or step away from the sport altogether. He chose the latter. On Sunday, he announced his retirement on Instagram, sharing a video of himself rock climbing and skiing. “Things you couldn’t do as a professional cyclist,” he explained. "That’s as good a retirement announcement as any, I guess."