Lucien Daller

Lucien Dähler is a product of the FC Thun academy, having joined the club's youth setup after progressing through FC Seisa 08 and FC Fribourg as a boy. He worked his way through the Thun ranks and spent five years with the club's U21 side, appearing 59 times and scoring 8 goals before breaking into the first team in 2022. He signed his first professional contract with FC Thun in May 2023, and in January 2026 the club extended his deal to 2028, with the option of a further year.

Dähler has never left FC Thun, building his entire career at the club where he came through as a youngster. He was part of the squad that won the 2024–25 Swiss Challenge League, earning promotion to the Swiss Super League, and the following season he featured as Thun won the Swiss Super League title for the first time in the club's history. In that promotion-winning and then title-winning campaign he went on to make more than 91 appearances for the senior side.

In the 2025–26 Super League season, Thun's first at the top level after their title triumph, Dähler made 19 appearances and scored once. He has not featured for any Swiss national team at senior or youth level, with his development so far confined entirely to club football at Thun.