He also had spells with Etoile Carouge and Team Vaud as an U21 player, before spending three seasons in the Swiss Promotion League with Étoile-Carouge.
[1] Mettler was brought to Lleida CF in the Spanish fourth tier, before going on trial with Norwegian club Raufoss IL in February 2023.
He made his debut in a friendly against Strømsgodset, and after spending the first fifteen minutes to adjust, Mettler showed his trademark passing abilities.
[8][9] While the fee was not disclosed, director of sports Espen Bugge Pettersen stated that Sandefjord spent most of their transfer budget on Mettler and one other player.
[10] He has tattooed disfruta del camino which he describes as his life motto, and uses in goal celebrations.